Question

evaluate each of the following using suitable identities: 32x28

Answer 1

Answer:

(30 + 2)(30 - 2)

a² - b²

30² - 2²

900 - 4

Ans 896

Answer 2

Answer:

896

Step-by-step explanation:

32 * 28

(30+2) * (30-2)

Formula can be --> (a^2-b^2)=(a+b)(a-b)

here a= 30

and  b = 2

So, answer is (30)^2 - (2)^2

that is: 900-4 = 896

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