f, \(x^3+x+2=x^3-x+2x+2=x\left(x^2-2\right)+2\left(x+1\right)\)
\(=x\left(x+1\right)\left(x-1\right)+2\left(x+1\right)=\left(x+1\right)\left(x^2-x+2\right)\)
g, \(x^8y^8+x^4y^4+1=x^8y^8+2x^4y^4+1-x^4y^4=\left(x^4y^4+1\right)^2-x^4y^4=\left(x^4y^4+x^2y^2+1\right)\left(x^4y^4-x^2y^2+1\right)\)
h, \(x^2-y^2+10x-6x+16\)
\(=\left(x^2+10x+25\right)-\left(y^2+6x+9\right)=\left(x+5\right)^2-\left(y+3\right)^2\)
\(=\left(x+5+y+3\right)\left(x+5-y-3\right)=\left(x+y+8\right)\left(x-y-2\right)\)
a)3x2-11x+6
=3x2-9x-2x+6
=3x(x-3)-2(x-3) =(x-3)(3x-2)
b)x2-6x+5
=x2-x-5x+5
=x(x-1)-5(x-10
=(x-1)(x-5)
c)x4+x2+1
đang suy nghĩ
d)x^4-4x^2+3
=x^4-x^2-3x^2+3
=x^2(x^2-1)-3(x^2-1)
=(x^2-1)(x^2-3)
e)6x^2+7xy+2y^2
=6x^2+3xy+4xy+2y^2
=3x(2x+y)+2y(2x+y)
=(2x+y)(3x+2y)
xin lỗi bạn mình bận đi học thêm nên 3 câu cuối ko giải đc mong bạn thông cảm
c, \(x^4+x^2+1=x^4+2x^2+1-x^2=\left(x^2+1\right)^2-x^2=\left(x^2+x+1\right)\left(x^2-x+1\right)\)
