\(=\left(3a-a^2\right)-\left(3b-ab\right)=\left(a-b\right)\left(3-a\right)\)
3a+3b-a2-ab
= 3a - a2 + 3b - ab
= a( 3-a ) +b( 3- a)
= ( a+b)(3 - a )
3a + 3b - a2 - ab
= 3a - a2 + 3b - ab
= a( 3 - a ) + b( 3 - a )
= ( a + b )( 3 - a )
\(=\left(3a-a^2\right)-\left(3b-ab\right)=\left(a-b\right)\left(3-a\right)\)
3a+3b-a2-ab
= 3a - a2 + 3b - ab
= a( 3-a ) +b( 3- a)
= ( a+b)(3 - a )
3a + 3b - a2 - ab
= 3a - a2 + 3b - ab
= a( 3 - a ) + b( 3 - a )
= ( a + b )( 3 - a )
Phan tich da thuc thanh nhan tu
a) x^2 - 7xy + 10y^2
b) 4x^2 + 12x - 27
c) 81x^4 + 4
d) 3a^2 - 6ab + 3b^2 - 12c^2
e) x^3 + 6x^2 +11x +6
phan tich da thuc sau thanh nhan tu ab(x^2+y^2)-xy(a^2+b^2)
ab(a+b)+bc(b+c) phan tich da thuc thanh nhan tu
ab(a+b)+bc(b+c) phan tich da thuc thanh nhan tu
phan tich da thuc thanh nhan tu abc+ab+ac+bc+a+b+c+1
phan tich da thuc sau thanh nhan tu : ab(a-b)+bc(b-c)+ca(c-a)
phan tich da thuc thanh nhan tu
x^2-x-y^2-y
x^2-2xy+y^2-z^2
bai 32 va 33 sbt
lop 8 bai phan tich da thuc thanh nhan tu bang cach nhom hang tu
Phan tich da thuc thanh nhan tu: a^2+2ab+b^2-ac-bc
bai1:phan tich da thuc thanh nhan tu a)5x3y-10x2y2+5xy3 b)x32y-1-125 2y-1 c)x2-6x-4y2+9 d)x2-xy+2y-2x