Question

x square + 9X plus 20​

Answer 1

Answer:

${x}^{2} + 9x + 20 \\ {x}^{2} + 4x + 5x + 20 \\ x(x + 4) + 5(x + 4) \\ (x + 4)(x + 5) \\ x = - 4 \\ x = - 5$

Answer 2

$\Huge{\color{blue}{\underline{\underline{Answer:-}}}}$

$\sf {x}^{2} + 9x + 20 \\ \sf {x}^{2} + 4x + 5x + 20 \\ \sf x(x + 4) + 5(x + 4) \\ \sf (x + 4)(x + 5) \\ \sf x = - 4 \\ \sf x = - 5$