Các câu hỏi tương tự
bài 1 tìm x
a)6x^2-72x=0
b)-2x^4+16x=0
c)x(x-5)-(x-3)^2=0
d)(x-2)^3-(x-2)(x^2+2x+4)=0
Tìm x:
a)(x+2)^2-2(x+2)(x-5)=0
b)2x^2+3x-5=0
c)x+2√2x^2+2x^3=0
d)(3x-1)^2-4(x+5)^2=0
Bài 1: Tìm x
a) (2x-1) ² - 25 = 0
b) 3x (x-1) + x - 1 = 0
c) 2(x+3) - x ² - 3x = 0
d) x(x - 2) + 3x - 6 = 0
e) 4x ² - 4x +1 = 0
f) x +5x ² = 0
g) x ² 2x -3 = 0
tìm x
a) 3.(x-3)-4x+12=0
b)(x+2)^2-(x+2).(x-2) =0
c)x^3+3x=3x^2+1
d)2/3x.(x^2-4)=0
e)(2x-3)^2-(+5)^2=0
Tìm x:
a) 5x(x-2)+(2-x)=0
b) x(2x-5)-10x+25=0
c) \(\dfrac{25}{16}\)-4x2+4x-1=0
d)x4+2x2-8=0
TÌM X
a. 3.(x^2-x+2)-x.(2+3x)=0
b. (x-1)^2 + (x-1)(x+2)=0
c. 2x^3 +3x^2+2x+3=0
d. 2x^2+x=6
Tìm x biết:
1,
a,3x(x+1) - 2x(x+2) = -x-1
b,2x(x-2020) - x+2020 = 0
c,(x-4)2 - 36 = 0
d,x2 + 8x - 16 = 0
e,x(x+6) - 7x - 42 = 0
f,25x2 - 16 = 0
2,
a,3x3 - 12x = 0
b,x2 + 3x - 10 = 0
a) 2x2 + 2x(5 - x)12 d) 2(x + 5) - x2 - 5x 0 g) (3x + 1)2 - (x+1) 0b) (5 - 2x)2 - 16 0 e) (2x - 1)2 - 4(x + 7)(x - 7) 0 h) x2 + 7x - 8 0c) 3x2 - 3x(x-2) 36 f) (x + 4)2 - (x + 1)(x - 1) 16 i) -2x2 +13x -15 0mik cần gấp, cảm ơn mọi người.
Đọc tiếp
a) 2x2 + 2x(5 - x)=12 d) 2(x + 5) - x2 - 5x = 0 g) (3x + 1)2 - (x+1) = 0
b) (5 - 2x)2 - 16 = 0 e) (2x - 1)2 - 4(x + 7)(x - 7) = 0 h) x2 + 7x - 8 = 0
c) 3x2 - 3x(x-2) = 36 f) (x + 4)2 - (x + 1)(x - 1) = 16 i) -2x2 +13x -15 = 0
mik cần gấp, cảm ơn mọi người.
giải các phương trình sau:
a.(x - 1)(x + 2)= 0
b.(x -2)(x -5)=0
c.(x +3)(x -5)=0
d.(x + 1/2)(4x + 4)=0
e.(x -4)(5x -10)=0
f.(2x -1)(3x +6)=0
g.(2,3x -6,9)(0,1x -2)=0
Tìm x, biết
a) 7x^2 – 28 = 0
b)2 phần 3x(x^2-4)=0
c) 2x^2 + 3x –5 = 0
d) 2x(3x – 5) – 5 + 3x = 0
e) (2x – 1)^2 – (2x + 5)(2x – 5) = 18