Question

(5x³-7x²+3x+7)+(-6x³+2x²+4x-10)

Answer 1

$\huge\gray{♚Solution♚}$

$\red{(5x³-7x²+3x+7)+(-6x³+2x²+4x-10)} \\ \orange{ = {5x}^{3} - {7x}^{2} + 3x + 7 - {6x}^{3} + {2x}^{2} + 4x - 10}\\ \orange{ = {5x}^{3} - {7x}^{2} + 3x - 3 - {6x}^{3} + {2x}^{2} + 4x} \\ \orange{ = - 1 {x}^{3} - 7 {x}^{2} + 3x - 3 + 2 {x}^{2} + 4x} \\\orange{=-{x}^{2} - 7 {x}^{2} + 3x - 3 + 2 {x}^{2} + 4x} \\ \orange{ = - {x}^{3} - 5 {x}^{2} + 3x - 3 + 4x} \\ \orange{ = - {x}^{3} - 5 {x}^{2} + 7x - 3}$

$\huge\gray{❥Hope \: it \: Helps࿐}$