Câu hỏi của Dennis

Question

PHÂN TÍCH ĐA THỨC THÀNH NHÂN TỬ :

a) $\left(x-2\right)\left(x-3\right)\left(x-4\right)\left(x-5\right)+1$

b) $x^4+2015^2+2014x+2015$

c) $x^3+y^3+z^3-3xyz$

d) \(\left(x^2-x+1\right)^2-5x\...

Hung nguyen · Accepted Answer

Nhiều quá cho đáp số thôi nhé

a/ $\left(x-2\right)\left(x-3\right)\left(x-4\right)\left(x-5\right)+1=\left(x^2-7x+11\right)^2$

b/ $x^4+2015x^2+2014x+2015=\left(x^2-x+2015\right)\left(x^2+x+1\right)$

c/ $x^3+y^3+z^3-3xyz=\left(x+y+z\right)\left(x^2+y^2+z^2-xy-yz-zx\right)$

d/ $\left(x^2-x+1\right)^2-5x\left(x^2-x+1\right)+4x^2=\left(x-1\right)^2\left(x^2-5x+1\right)$

e/ $12x^3+16x^2-5x-3=\left(2x-1\right)\left(2x+3\right)\left(3x+1\right)$Câu trả lời: Nhiều quá cho đáp số thôi nhé

a/ $\left(x-2\right)\left(x-3\right)\left(x-4\right)\left(x-5\right)+1=\left(x^2-7x+11\right)^2$

b/ $x^4+2015x^2+2014x+2015=\left(x^2-x+2015\right)\left(x^2+x+1\right)$

c/ $x^3+y^3+z^3-3xyz=\left(x+y+z\right)\left(x^2+y^2+z^2-xy-yz-zx\right)$

d/ $\left(x^2-x+1\right)^2-5x\left(x^2-x+1\right)+4x^2=\left(x-1\right)^2\left(x^2-5x+1\right)$

e/ $12x^3+16x^2-5x-3=\left(2x-1\right)\left(2x+3\right)\left(3x+1\right)$

Đại số lớp 8