tim x biet
(2x=1)^2 - 4(x=2)^2=9
3(x-1)^2 -3x(x-5)=1
3(x+2)^2+ (2x-1)^2 =7
7(x+3)(x-3)=36
tim m biet
a) (x^2-x+1)x-(x+1)x^2+m= -2x^2+x+5
b) -x^2(x^2+x+1+2)= -x^4-x^3-x^2+m
giup vs nhanh mk dag can gap
tim x biet
a) 4(x+1)^2-9(x+2)^2=0
b) 4(x+1)^2+(2x-1)^2-8(x+1)(x-1)=11
giai cach lam giup minh nha
7(2x-5)-5(7x-2)+2(5x-7) = (x+2)-(x+4) tim x nhe ai giai giup minh vs
tim x biet x2-11x+18=0
-4x2+5x-1=0 2x3+3x2+2x+3=0x(2x-7)-4x+14=0tinh nhanh bt sau
A=3.(x-3).(x+7)+(x-4)2+48,tai x=0.5
tim x biet
(5x-7) (x-9)-(-x+3)(-5x+2)=2x(x-4)-(x-1)(2x+3)
tim x biet x^2*(x-2)+x*(-3+2x)-5x=7
bai 1 tinh
a (x-2)(x^2+2x+4)-x(x^2-1)
b (x+1)(x-3)-(x+4)(x-4) lam nhanh giup em nha cam on
tim x biet;6x^2-(2x+5)(3x-2)=7
