Evaluate, using the identity a²-b²=(a+b)(a-b)(1) 38²-36²(ii) 87²- – InterviewSolution

1.

Evaluate, using the identity a²-b²=(a+b)(a-b)(1) 38²-36²(ii) 87²-77²(iii) (1074)²-(1073)²

Answer»

Answer:

Step-by-step EXPLANATION:

i) 38² - 36²

= (38+36)(38-36)

= 74*2

= 148.

ii) 87² - 77²

=(87+77)(87-77)

= 164*10

= 1640

iii) 1074² - 1073²

= (1074+1073)(1074-1073)

= 2147*1

= 2147

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