Question

how to solve this question?​

Answer 1

Answer:

${x}^{2} + 8x + 15 \\ \\ = > {x}^{2} + 5x + 3x + 15 = 0 \\ \\ \\ = > x(x + 5) + 3(x + 5) = 0 \\ \\ \\ = > (x + 3)(x + 5) = 0 \\ \\ \\ \\ x = - 3 \\ x = - 5$

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Answer 2

Answer:X=-5,-3

Step-by-step explanation:x^2+8x+15

x^2+5x+3x+15

X(X+5)+3(X+5)

(x+5)(X+3)=0

X=-5,-3

Hope it will help you