Math, asked by alanmello1991, 4 months ago

Using (x+a)(x+b) = (a+b)(a-b), find (12.1)^2 - (7.9)^2

Answers

Answered by gayathrikoritala

2

(12.1)²-(7.9)²

(12.1+7.9)(12.1-7.9)=(20)(4.2)=84

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