Question

×=9 or ×=-4 solve this guys...​

Answer 1

$\huge\underline\mathcal\color{orange}{Answer}$

$x = 9 \: \: \: \: \: \: x = - 4$

$x - 9 = 0 \: \: \: \: \: \: x + 4 = 0$

$(x - 9)(x + 4) = 0$

${x}^{2} +4x - 9x - 36 = 0$

${x}^{2} - 5x - 36 = 0$

Answer 2

Answer:

${x}^{2} - 5x - 36$

Step-by-step explanation:

$x = 9 \: or \: x = - 4$

$x - 9 = 0 \: and \: x + 4 = 0$

$(x - 9)(x + 4) = 0$

${x}^{2} + 4x - 9x - 36$

${x}^{2} - 5x - 36$