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  • Using a^2 – b^2 = (a + b) (a – b), find 153^2 - 147^2

Q : 7       Using   a^2-b^2=(a+b)(a-b) , find.

              (iii) 153^2-147^2

Answers (1)

best_answer

We know,

a^2-b^2=(a+b)(a-b)

Using this formula,

153^2-147^2 = (153 - 147)(153 +147)

=(6) (300)

= 1800

Posted by

HARSH KANKARIA

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