Question

Expand the given expression (-2x+5y-3z)²

Answer 1

Answer:

$= {( - 2x + 5y - 3z)}^{2} \\ \\ = {( - 2x)}^{2} + {(5y)}^{2} + {( - 3z)}^{2} + 2( - 2x) (5y) + 2(5y)( - 3z) + 2( -2 x)( - 3z) \\ \\ = 4 {x}^{2} + 25 {y}^{2} + 9 {z}^{2} - 20xy - 30yz + 12xz$