Question

X^2+9x+20=0 Solve the given quadratic equation Please guys help me i can't understand!!!!

Answer 1

Answer:

$\mathfrak \red{here \: is \: your \: answer} \\ {x}^{2} + 9x + 20 = 0 \\ {x}^{2} + 5x + 4x + 20 \\ x(x + 5) + 4(x + 5) \\ (x + 5)(x + 4) \\ so...x = - 5 \\ x = - 4$

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