Maths-

General

Easy

Question

# Use the square of a binomial to find the value. 72^{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: 5184.

### 72^{2} can be written as (70 + 2)^{2} which can be further written as (70 + 2)(70 + 2)

(70 + 2)(70 + 2) = 70(70 + 2) + 2(70 + 2)

= 70(70) + 70(2) + 2(70) + 2(2)

= 4900 + 140 + 140 + 4

= 4900 + 280 + 4

= 5184

Final Answer:

Hence, the value of 72^{2} is 5184.

Final Answer:

Hence, the value of 72

^{2}is 5184.

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