Question

Phân tích thành nhân tử \(x^2-x-6\)

Answer 1

x²-x-6

= x²-3x+2x-6

= x(x-3)+2(x-3)

= (x-3)(x+2)

Answer 2

x²-x-6

=x²+2x-3x-6

=x.(x+2)-3.(x+2)

=(x+2)(x-3)