Question

Phân tích đa thức thành nhân tử :

3x^2-7x-10

Answer 1

\(3x^2-7x-10\)

\(=3x^2+3x-10x-10\)

\(=3x\left(x+1\right)-10\left(x+1\right)\)

\(=\left(x+1\right)\left(3x-10\right)\)

Answer 2

3x² - 7x - 10 = 3x² + 3x - 10x - 10 = 3x(x + 1) - 10(x + 1) = (3x - 10)(x + 1)

Answer 3

\(3x^2-7x-10\)

\(=3x^2-3x+10x-10\)

\(=3x\left(x-1\right)+10\left(x-1\right)\)

\(=\left(x-1\right)\left(3x+10\right)\)