Question

8. Expand : (3x + 5)2
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Answer 1

$\huge{Answer}$

$(3x + 5) ^{2} \\ {3x}^{2} + 25 + 2(3x)(5) \\ {3x}^{2} + 25 + 30$

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Answer 2

(3x+5)^2

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

(3x+5)^2=(3x)^2+(5)^2+2×3x×5

=9x^2+25+30x

HOPE IT WILL HELP YOU. ...........