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Simplifying
Simplify the expression , which involves adding two like square roots whose radicand is a variable.
Both terms contain , so the radicals are like. Add the coefficients while keeping the radical part unchanged: .
This example shows that the procedure for combining like square roots works identically whether the radicand is a number or a variable. As long as the expressions under the radical signs match, the coefficients are simply added together.
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Ch.9 Roots and Radicals - Elementary Algebra @ OpenStax
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Adding and Subtracting Square Roots that Need Simplification
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While reviewing the mathematical formulas used to calculate material dimensions for a new manufacturing project, you encounter several expressions with square roots. To simplify these expressions correctly, which rule must you recall regarding the addition and subtraction of square roots?
A quality control analyst is simplifying the expression 8√5 + 2√5 for a report. Following the rule for adding like square roots, the resulting coefficient in front of the √5 is ____.
When a technician is documenting the total length of two wiring segments, 5√2 meters and 3√2 meters, the rule for adding 'like square roots' states that the coefficients should be added while the radicand (2) remains unchanged.
An inventory manager is totaling the weights of two batches of metal alloy, recorded as 9√5 kg and √5 kg. To simplify the total weight (9√5 + √5), arrange the following steps in the correct order based on the rule for adding like square roots.
A maintenance team is organizing an inventory of metal tubing. The lengths of various segments are recorded using square root expressions. Match each pair of tubing measurements with its correctly simplified total length or difference, based on the rules for adding and subtracting like square roots.
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A logistics coordinator is totaling the weights of several shipments labeled with square root expressions. According to the rules for 'like square roots,' which of the following pairs of weights can be simplified by adding them together into a single term?
A billing coordinator is reviewing a cost-estimation formula that includes the expression . To simplify this expression to $2\sqrt{15}$ correctly, the coordinator must recall that any square root term without a visible number in front of it has an implicit coefficient of:
Simplifying
Adding and Subtracting Like Radicals
Learn After
A technician is calculating the total resistance in a circuit where two components have values represented by 3√y and 4√y. What is the simplified expression for the total resistance (3√y + 4√y)?
A technician is combining two pressure readings, 3√y and 4√y, for a technical report. To simplify this sum, the technician adds the coefficients 3 and 4 to get a total of ____√y.
In a financial model, a budget analyst represents two different cost variables as 3√y and 4√y. The analyst claims that these terms cannot be combined because the radicand 'y' is a variable rather than a constant number. Is this claim true or false?
A logistics supervisor is simplifying a formula for calculating shipping delays across two different routes, represented by the expression . Match each part of the expression or the simplification process with its correct mathematical role.
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A manufacturing technician is streamlining a quality control formula that involves the expression . To simplify this expression correctly according to standard mathematical procedures, arrange the following steps in the proper order.
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A project estimator is simplifying a cost-projection formula that contains the expression . According to the standard procedure for adding square roots, which statement correctly describes how this variable expression is simplified compared to an expression with numerical radicands, such as ?
A technical lead is explaining how to simplify the formula $3\sqrt{y} + 4\sqrt{y}$ for a equipment performance report. To combine these two terms by adding their coefficients, which specific requirement must be met regarding the radical parts of the expression?