Solve the following equation 1. X ^ 2-3x-10 = 0.2. (x + 3) (x-1) = 5 Solve the following equation 1.x^2-3x-10=0 2.(x+3)(x-1)=5 Because can't think out headache. Need to know why become like that, not to know the answer behind, otherwise the exam won't do it

Solve the following equation 1. X ^ 2-3x-10 = 0.2. (x + 3) (x-1) = 5 Solve the following equation 1.x^2-3x-10=0 2.(x+3)(x-1)=5 Because can't think out headache. Need to know why become like that, not to know the answer behind, otherwise the exam won't do it

1.x^2-3x-10=0
x^2-5x+2x-5*2=0
(x-5)(x+2)=0
x1=5 x2=-2
2.(x+3)(x-1)=5
x^2+2x-3=5
x^2+2x-8=0
x^2+4x-2x-4*2=0
(x+4)(x-2)=0
x1=-4 x2-2

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