12x³−75xy²=?
a) 3x(2x+5y)(2x-5y)
b) 2x(2x+5y)²
c) 3x(2x-5y)²
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Answers
Answered by
1
Answer:
a) 3x(2x+5y)(2x-5y)
Explanation:
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Answered by
1
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
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