Giai bat phuong trinh sau (x-1)(2x+3)<x(2x+1)-1
giai phuong trinh
3|3x+1|+4=13
4(x+5)-3|2x-1|=10
giai phuong trinh
1, -3x \(\ge\)\(\frac{1}{5}\)
giai bat phuong trinh
a,\(|2-x|+5=0\)
b, \(|3-2x|+x=0\)
c,\(2x-|x+4|=7\)
giai phuong trinh:
a)2x(x+5)-(x-3)^2 = x^2 +6
b)(4x+7)(x-5)-3x^2=x(x-1)
Thực hiện phép tính:
a)2x(3x2 - 5x + 3) b)-2x2(x2 + 5x - 3) c)-1/2x2(2x3 - 4x + 3)
d) (2x - 1)(x2 +5- 4) c) 7x(x - 4) - (7x + 3)(2x2 - x + 4).
x(2x - 1) - 8 < 5 - 2x(3 - x)
Hay giai bat phuong trinh sau:
Giai phuong trinh sau
(x-2)^3 = ( 2x+1)^3
giai phuong trinh
a)2x^2 + 3xy + y^2 = 0
b) (x+1)(x+3)(x+5)(x+7)+15=0
giai phuong trinh x^2+2x+3=(x^2+x+1)(x^4+x^2+4)
