Question

simplify (5y + 2)² answer tell me 9th class cbse ​

Answer 1

Answer:

Right answer is (25y^2 +4 +20y) .

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Answer 2

Answer:

$(5y + 2)^{2} = 25y^{2} + 4 + 20y$

i hope this will help you.

the formula used is :

$(x + y)^{2} = x ^{2} + y^{2} + 2xy$