Question

отдуши помогите
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Answer 1

x(x-2)=5(x+6)
x(x-2)-5(x+6)=0
x^2-2x-5x-30=0
x^2-7x-30=0
x^2+3x-10x-30=0
x(x+3)-10(x+3)=0
(x+3)(x-10)=0
x1=-3;x2=10