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tim x biet 3x^2-5x+2=0
giup voi
tim x biet
2/3x^2-5x+2 + 13/3x^2+x+2 = 6/x
1)Tim x, biet : a) \(4\left(18-5x\right)-12\left(3x-7\right)=15\left(2x-16\right)-6\left(x+14\right)\)
b) \(2\left(5x-8\right)-3\left(4x-5\right)=4\left(3x-4\right)+11\)
Tim x biet
a) 28x^3+15x^2+75x+125=0
b)4x^2-x-5=0
Phan tich da thuc thanh nhan tu
a) x^3+5x^2+3x-9
b)x^3-7x-6
c)3x^3-7x^2+17x-5
Tim x biet
a) 28x^3+15x^2+75x+125=0
b)4x^2-x-5=0
Phan tich da thuc thanh nhan tu
a) x^3+5x^2+3x-9
b)x^3-7x-6
c)3x^3-7x^2+17x-5
tim a b biet x ^4-3x +2=(x-1)(x^3+ax^2+bx-2)
tim x biet
(5x-7) (x-9)-(-x+3)(-5x+2)=2x(x-4)-(x-1)(2x+3)
tim x biet x^3-3x^2+3x-1=0
tim x biet x^2+3x+1=0
