\(\rightarrow2x-x=0+12\\ \rightarrow x=12\)
\(\rightarrow2x-x=0+12\\ \rightarrow x=12\)
Tìm x :
1) -12 + 3 . ( -x +7 ) = -18
2) x . ( x + 7 ) = 0
3) ( -x + 5 ) . ( 3 - x ) = 0
4) ( x + 12 ) . ( x - 3 ) = 0
5) x . ( 2 + x ) . ( 7 - x ) = 0
6) ( x - 1 ) . ( x + 2 ) . ( -x - 3 ) = 0
3x - 36=12 . 75 + 25 .12
x:2-12=33 . 40 + 33 . 59 +33
(x-4) . (9-x) = 0
(x-6) . (2020-x)=0
x . (6-x) =0
(x-3-12) . (20-x)=0
Giúp em vs ạ em cảm ơn(◕ᴗ◕✿)
1) –45 + 5.(–2x) = 95
2) x.(12 + x).(71 – x) = 0
3) (x – 11).(x + 12).(–x – 13) = 0
4) |2.x – 15| = 7
5) –2.|x + 32| = –112
x . (x+7) = 0
(x+12) . (x-3) = 0
(-x + 5 ). ( 3 - x) = 0
(x - 1 ) . ( x +2) . (-3 - 3) = 0
Bài 13: Tìm x biết: a) (x-2)(x-3)-D0. b) (x-3)(x-4)-0. c) (x-7)(6-x)=0. d) (x-3)(x-13)=0. The Bài 14: Tìm x biết: a) (12-x)(2-x)=0. b) (x-33)(11-x)=0. c) (21-x)(12-x)=0. d) (50-x)(x-150) =0. Bài 15: Tìm x biết: a) 2x +x = 45. b) 2x +7x = 918. c) 2x+3x 60+5. d) 11x+22x 33.2.
(x+12).(x-3)=0
(-x+5).(3-x)=0
x.(2+x).(7-x)=0
(x-1).(x-2).(-x-3)=0
a: (x - 11 + y)mũ 2 + (x - 1 - y)mũ 2 = 0
B: x + (-31/12)mũ 2 + (49/12)mũ 2 = 0
C:(3x - 5)mũ 100 + (2y + 1) mũ 200 nhỏ hơn bằng 0
D: (1/2x - 5)mũ 20 + (y mũ 2 - 1/4) mũ 10 nhỏ hơn bằng 0
E: 2 mũ x - 1 nhân 3 mũ x = 12 mũ x
f)(2.x-8).(4.x+16)=0
g)5x.(6x-12)=0
h)7.(9-x)(12-6x)=0
a) |x| + |y| = 5
b) |x| + |y - 1| = 0
c) |x - 12| = 12 - x
d) |x - 1| = 0
e) 2 . |x - 1| = 0
Tìm x, y.
Tìm x, biết:
a) (x - 3.5).12 = 0;
b) 35. (x - 10) = 35;
c) ( x - 5): 3 + 3 = 24
d) ( x - 4) : 3 - 2 = 100
c) 25.(2.x - 4).12 = 0
d) (x - 4) : 6 - 5 = 10