Question

find the value of (84)square - (76)square using the identity for difference of two squares ? from photo 3(iii)

Answer 1

(84)² - (76)²

By identity, a²-b²=(a+b)(a-b)

=> (84+76)(84-76)

=> (160)(8)

=> 1280

I hope this will help you

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Answer 2

The answer is 1280

GIVEN

Mathematical expression; (84)² - (76)²

TO FIND

The value of the given expression

SOLUTION

We can simply solve the above problem as follows;

We are given a mathematical expression;

(84)² - (76)²

Applying the identity

a² - b² = (a+b)(a-b)

Now,

(84)² - (76)² = (84 + 76)(84-76)

= 160 × 8

= 1280

Hence, The answer is 1280

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