Question

solve the quadratic equation. by factorazation X2 + 8x +15 =0​

Answer 1

Step-by-step explanation:

The solution of given quadratic equation is -3,-5

Step-by-step explanation:

Equation :x^2 + 8x + 15 = 0.x2+8x+15=0.

We are supposed to find the solution of quadratic equation .

x^2+8x+15=0x2+8x+15=0

x^2+5x+3x+15=0x2+5x+3x+15=0

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

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

x=-3,-5x=−3,−5

Hence the solution of given quadratic equation is -3,-5

#Learn more:

Solve the following  x² - 4x + 13=0  quadratic  equation

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Answer 2

Answer:

X = - 3, - 5

Step-by-step explanation:

X^2 + 8x + 15

= x^2 + 3x + 5x + 15

= x (x + 3) + 5(x + 3)

= (x + 3) ( x + 5)

= x = - 3, x=-5