Math, asked by shadmanm441, 2 months ago

Find the square by using the identitie :

( 3x + 7 )²

Answers

Answered by vydehibala

2

Answer:

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

(3x+7)^2 = (3x)^2 + 2×3x×7 + 7^2

= 9x^2 + 42x + 49

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