Question

x^2-2x-15=0 then x=?​

Answer 1

Answer:

x=5,-3

Step-by-step explanation:

x^2-2x-15=0

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

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

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

x=5,-3

Answer 2

Your Answer :-

x²-2x-15 = 0

factorise using middle term splitting method :-

x²- 2x - 15 = 0

=> x²+3x -5x - 15 = 0

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

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

=> x + 3 = 0. or. x - 5 = 0

=> x = -3. or. x = 5

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