Math, asked by karthik599255, 5 months ago

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Answered by Anonymous

1

Answer:

a) use (a-b)(a+b) = a²- b²

(80-2)(80+2)

80² - 2²

6400 - 4

6396 (Ans)

b) use (x+a)(x+b)=x² + x(a+b) + ab

(100+4)(100+3)

100² + 100(4+3) + (4*3)

10000+700+12

10712 (Ans)

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