Question

Plese answer tis questionexpand (2x-3b-c)^2

Answer 1

$( {a }^{2} - {b}^{2} - {c}^{2} ) = {a}^{2} + {b}^{2} + {c}^{2} - 2ab + 2bc - 2ca$

4x2+9b2+c2-72xb+6bc-4xc