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tim x biet a) |3x-2|+5x=4x-10
b)3+ |2x+5|>13
Tim x biet:
a.|x|+|x+2|=3
b.|3x-5|=|x+2|
c.|2x+3|-4x<9
a, Tim x biet:/x-2/+/3-2x/=2x+1
b, Tim x,y thuoc Z biet:xy+2x-y=5
c, tim x,y,z, biet :2x=3y;4y=5zva 4x-3y+5z=7
Tim x biet : -4x(x-5)-2x(8-2x)=-3
tim x biet:
a) (4x-3)^4=(4x-3)^2
b) co hay khong so huu ti thoa man?
(2x+3)^2+(3x-2)^4=0
YOU DO FAST. THANKS
Cho A ( x ) = 8-5x+3x2-15-3x+16
B ( X ) =5x-2x2=4x-1-x2-3x
a) thu gon A va B sap xep theo so mu giam dan
b) tim da thuc C biet C ( x) + A ( x)= B ( x)
Tim x biet x+2x+3x+...+2013x=2013.1007
tim x biet (x+1)*(2x-1)*(4x+3) lon hon 0
Tim x biet: (3/4x+5)-(2/3x-4)-(1/6x+1)=(1/3+4)-(1/3x-3)
