Question

If A = 2x 2 – 4x and B = 5x 2 + 2x find A-B

Answer 1

Answer:

I hope your question is

$a = {2x}^{2} - 4x \: and \: b = 5 {x}^{2} + 2x \: \\ find \: a - b \\givin \: a = 2 {x}^{2} - 4x \: \\ and \: b = 5 {x}^{2} + 2x \\ to \: find \: a - b \: we \: have \\ 2 {x}^{2} - 4x \\ 5 {x}^{2} + 2x \ \\ (-) \: \: \: (-) \\ - - - - - - \\ - 3 {x}^{2} - 6x$

.°. A - B = -3x^2 - 6x