Question

( -5x²y) x (2xy²) find the product ​

Answer 1

Expression should be (2x-y+3z) (4x^2+y^2+9z^2+2xy+3yz - 6xz)

In that case it becomes = (2x)^3 + (-y)^3 + (3z)^3^ -3(2x)(-y)(3z) as per the identity a^3 +b^3 + c^3 -3abc = (a+b+c)(a^2 +b^2 +c^2 -ab -bc -ca).

Answer 2

-10 x to the power 3 ,y to the power 3