Question

$(x + y)(x + y)( {x }^{2} - {y)}^{2}$
give the right answer​

Answer 1

(x + y)(x + y) = (x + y)²

So,

(x + y)²(x² - y)²

= x⁴y²+2x⁵y+x⁶−2x²y³−4x³y²−2x⁴y+y⁴+2xy³+x²y²