Question

X square + 13 x + 36​

Answer 1

x² + 13x + 36

= x² + 9x + 4x + 36

= x(x + 9) + 4(x + 9)

= (x + 4)(x + 9).

Answer 2

Answer: -9 and -4

Step-by-step explanation:

${x}^{2} + 13x + 36 = 0$

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

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

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

so,

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

so,

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

HOPE IT HELPS YOU.

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