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Chapter 1: Q21. (page 21)

Write an algebraic expression to represent each verbal expression.

Four less than square of a number

Short Answer

Expert verified

The expression is x2-4.

Step by step solution

01

Step 1- Observe the provided statement

According to the statement there is an unknown number which will have an exponent 2 on it so consider that number be x. There is a decrement which indicates towards subtraction.

02

– Use the observation

By using the observation form the expression.

x2-4

03

Step 3- Make the conclusion

As the obtained expression is completely matching with the provided statement so the expressionx2-4is the required expression.

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