Factorise:32x⁴+12x³y-5x²y²
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Answer:
x²(4x-y)(8x+5y)
Step-by-step explanation:
32x⁴+12x³y -5x²y²
=x²(32x²+12xy-5y²)
=x²{32x²+(20-8)xy-5y²}
=x²{32x²+20xy-8xy-5y²}
=x²{4x(8x+5y)-y(8x+5y)}
=x²(4x-y)(8x+5y)
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