x^2 + 7x -15
= x^2 + 7x +12,25 -27,25
= (x+3,5)^2 - 27, 25
= ( x+3,5 - \(\sqrt{27,25}\))(x+3,5+\(\sqrt{27,25}\))
x^2 + 7x -15
= x^2 + 7x +12,25 -27,25
= (x+3,5)^2 - 27, 25
= ( x+3,5 - \(\sqrt{27,25}\))(x+3,5+\(\sqrt{27,25}\))
Phan tich da thuc thanh nhan tu (x²+3x)^2+7x²+21x+10
phan tich da thuc thanh nhan tu :
5x^2 + 5xy - x - y
7x - 6x^2 - 2
phan tich da thuc thanh nhan tu
a, x^5+x-1
b, (x^2+3x+2)(x62+7x+12)-24
Phan tich da thuc thanh nhan tu
( x^2-6x+ 8)( x^2-8x +15) +1
Phan tich da thuc thanh nhan tu
x(x-2)-47x2+500xy+7y2Phan tich da thuc thanh nhan tu
(X^2-6x+8)(x^2-8x+15)+1
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
6x2+xy-7x-2y2+7y-5 Phan tich da thuc thanh nhan tu
phan tich da thuc sau thanh nhan tu bang cach ha bac-tách để xuất hiện ntc là (x-4)
x^4-4x^3-7x^2+22x+24