Question

12x³−75xy²=?

a) 3x(2x+5y)(2x-5y)
b) 2x(2x+5y)²
c) 3x(2x-5y)²

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Answer 1

Answer:

a) 3x(2x+5y)(2x-5y)

Explanation:

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Answer 2

Answer:

(2x+5y)

2

+(2x−5y)

2

[Using, (a±b)

2

=a

2

±2ab+b

2

]

=(2x)

2

+2×2x×5y+(5y)

2

+(2x)

2

−2×2x×5y+(5y)

2

=4x

2

+20xy+25y

2

+4x

2

−20xy+25y

2

=8x

2

+50y

2