phan tich da thuc thanh nhan tu
x3 -2x -4
phan tich da thuc thanh nhan tu :x^5+2x^4+3x^3+2x^2+2x+1
x^5+2x^4+2x^3+2x^2+2x+1
=(x^5+x^4)+(x^4+x^3)+(x^3+x^2)+(x^2+x)+(x+1)
=x^4(x+1)+x^3(x+1)+x^2(x+1)+x(x+1)+(x+1)
=(x+1)(x^4+x^3+x^2+x+1)
cau 1 :phan tich da thuc thanh nhan tu a)5x3y-10x2y2+5xy3 b)x3 2y-1-125 2y-1 c)x2-6x-4y2+9 d)x2-xy+2y-2x e)4x2-4y2+4x+1 minh can gap
phan tich da thuc \(2x^2\)-4 thanh nhan tu
\(=\left(\sqrt{2}x+2\right)\left(\sqrt{2}x-2\right)\)
phan tich cat da thuc sau thanh nhan tu
a) x^4 + 1 - 2x^2
\(x^4+2x^2+1=\left(x^2+1\right)^2\) (Nhớ k cho mình với nhé!)
phan tich da thuc thanh nhan tu : 4x^4+4x^3+5x^2 +2x +1
X^4+4x^3+5x^2+2x+1
Phan tich da thuc thanh nhan tu
phan tich da thuc thanh nhan tu
x^4+x^3+2x^2+x+1
x4+x3+2x2+x+1=x4+x3+x2+x2+x+1=(x4+x3+x2)+(x2+x+1)
=x2(x2+x+1)+(x2+x+1)
=(x2+x+1)(x2+1)
=(x^4+2x^2+1)+(x^3+x)
=(x^2+1)^2+x(x^2+1)
(x^+1)*(x^2+1+x0
4x^4+4x^3+5^2+2x+1
phan tich da thuc thanh nhan tu
4x^4+4x^3+5^2+2x+1 = (4x^4+4x^3+x^2) + (4x^2+2x) + 1 = x^2(2x+1)^2 + 2x(2x+1) + 1 = [x(2x+1)]^2 +2x(2x+1) + 1 = (2x^2+x+1)^2
nếu là 5^2 thì như tui
còn 5x^2 thì như Kami
phan tich da thuc thanh nhan tu
x4 + 1 - 2x2
x4 -2x2 +1 =x2.x2 - x2-x2 +1= - x2(1- x2) + (1 - x2)=(1-x2).(1-x2)=(1-x2)2