Question

How to add ax square + bx + c with bx square + cx + d?

Answer 1

taking common like x sq and x

Answer 2

$a {x}^{2} + bx + c \\ b {x}^{2} + cx + d \\ a {x}^{2} + bx + c + b {x}^{2} + cx + d \\ {x}^{2} (a + b) + x(c + b) + c + d$