Maths-

General

Easy

Question

# Use the square of a binomial to find the value of 71^{2}.

Hint:

### The methods used to find the product of binomials are called special products.

Multiplying a number by itself is often called squaring.

For example (*x* + 3)(*x* + 3) = (*x* + 3)2

## The correct answer is: 5041

### 71^{2} can be written as (70 + 1)^{2} which can be further written as (70 + 1)(70 + 1)

(70 + 1)(70 + 1) = 70(70 + 1) + 1(70 + 1)

= 70(70) + 70(1) + 1(70) + 1(1)

= 4900 + 70 + 70 + 1

= 4900 + 140 + 1

= 5041

Final Answer:

Hence, the value of 71^{2} is 5041.

Final Answer:

Hence, the value of 71

^{2}is 5041.

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