Math, asked by viveksinghvv40, 8 months ago

Torksheet 1
Find the following by using Identity-I.
(i) (2x + 5)2
(8)​

Answers

Answered by dunukrish
1

Step-by-step explanation:

(2x+5)²

=(2x)²+5²+2(2x)×5. { (a+b)²=a²+b²+2ab}

=4x²+25+20x

=4x²+20x+25.

hope you got it

Answered by SugaryCherrie
1

Answer:

(a+b^{2})= a^{2}+2ab+b^{2}\\\\(2x+5^{2} =2x^{2}+2*2x*5^{2}\\\ =2x^{2}+20x+25\\ \\=4x^{2}+20x+25

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