Question

Factorise:32x⁴+12x³y-5x²y²​

Answer 1

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)