\(C1:5x-3x=x\left(5-3\right)=2x\)
\(C2=5x-3x=2x\)
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\(C1:5x-3x=x\left(5-3\right)=2x\)
\(C2=5x-3x=2x\)
Tìm x:
a ) (3x -5)^2 - (3x +2) (3x - 2) = 8
b ) (5x + 3) (3 - 5x) + (5x - 7) ( 5x - 7) = 1
TÌM X BIẾT :
a/ 3x ( 3x -1 ) - ( 3x + 1 ) ( 3x - 1 ) = 0
b/ \(x^2\) - 5x + 25 - 5x = 0
KHÔNG BỎ BƯỚC Ạ !
5x / 5x-5 = 3x+12 / 3x+3
5x / 5x-5 = 3x+12 / 3x+3
Tìm x, biết
a/ 6x^2 -(2x+3)(3x-2)=7
b/5x(12+7)-3x(80x-5)=-100
c/(3x-5)(7-5x)-(5x-2)(2-3x)=4
(3x-5)(7-5x)-(5x+2)(2-3x)=4
căn (3x^2+5x+1) - căn (3x^2+5x-7) = 2
Tìm nghiệm đa thức :
a) f(x) = (3x + 4) . (5x - 1) + (5x + 2) . (1 - 3x ) + 2
b) g(x) = (5x - 1) . (2x + 3) - 3.(3x - 1 )
(3x - 5)* (7 -5x) + (5x + 2)* (3x - 2)- 2 = 0