the square of (5x+2y)
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(5x+2y)² is in the form of (a+b)²
As,(a+b)²=a²+2ab+b²
(5x+2y)²=(5x)²+2(5x)(2y)+(2y)²
⇒25x²+20xy+4y².
∴(5x+2y)²=25x²+20xy+4y²
As,(a+b)²=a²+2ab+b²
(5x+2y)²=(5x)²+2(5x)(2y)+(2y)²
⇒25x²+20xy+4y².
∴(5x+2y)²=25x²+20xy+4y²
warner:
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lohithanaidu
in which class u r studying ?
why
just
i think so 9 its der in it ryt ?
i am in 8 standard
Answered by
1
We have,
⇒(5x+2y)²
⇒(5x)²+2(5x)(2y)+(2y)² [∵(a+b)²=a²+2ab+b²]
⇒25x²+20xy+4y².
⇒(5x+2y)²
⇒(5x)²+2(5x)(2y)+(2y)² [∵(a+b)²=a²+2ab+b²]
⇒25x²+20xy+4y².
thank you
ohh..ur welcum and thnkiew for mark it as best
no mention
^_<
what I cant understand
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