Tìm x, biết: x(5 – 2x) + 2x(x - 1) = 15
Tìm x biết :
a, (2x + 1)^2 - 4(x + 2)^2 = 9
b, x^2 - 2x - 15 = 0
c, 2x^2 + 3x -5 = 0
Tìm x, biết: x( 5 - 2x ) + 2x( x - 1 ) = 15
Tìm x biết : x .(5-2x)+2x.(x-1)=15
tìm x biết
a) 5x(2x-7)+2x(8-5x)=5
b)(3x-5)(7-5x)-(5x+2)(2-3x)=4
c)5(2x-3)^2-5(x+1)^2-15(x+4)(x-4)=-10
d) 5x(x-3)(x+3)-(2x-3)^2 -5(x+2)^3+34x(x+2)=1
Tìm x, biết
a) 5x(x-3)^3 - 5(x - 1)^3 + 15(x+2)*(x-2)=5
b)(x+3)^3 - x(3x+1)^2 + (2x + 1)*(4x^2-2x+1)-3x^2= 42
Tìm x biết
1) x2 - 6x + 9 = (5 - 3x) 2
2) 3x. ( 2x - 3) = 5. ( 3 - 2x)
3) x2 - 2x - 15 = 0
tìm x biết
a x^2 (2x+15)+4(2x+15)=0
b 5x(x-2)-3(x-2)=0
c 2(x+3)-x^2-3x=0
Tìm x biết : a) (x+2)(x²-2x+4)-x(x²-2)=15 b) (x-4)² - (x-2)(x+2)= 6 c) x⁴-2x³+x²-2x=0