Question

Bài tập: Phân tích đa thức thành nhân tử:

a) x + 5x^2

b) (x + 1)^2 - 3(x + 1)

c) 2x^2y^3z + 2xy^2

giúp mik zớiT_T

Answer 1

a, \(x+5x^2=x\left(1+5x\right)\)

b, \(\left(x+1\right)^2-3\left(x+1\right)\)

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

\(=\left(x+1\right)\left(x-2\right)\)

c, \(2x^2y^3z+2xy^2=2xy\left(xy^2z+y\right)\)

Answer 2

a. x+5x²= x(1+5x)

b. (x+1)²-3(x+1) = (x+1)(x+1-3) = (x+1)(x-2)

c. 2x²y³z+2xy²= 2xy²(2xyz+1)