Các câu hỏi tương tự
Tìm x:
a) 5(x-3)(x-7)-(5x+1)-(x-2)=8
b) 3(x-7)(x+7)-(x-1)(3x+2)=13
13 tháng 8 2019 lúc 19:54
Tìm x, biết:
a. 3(2x - 1)(3x - 1) - (2x - 3)(9x - 1) = 0
b. (x - 3)(x - 5) + 3 (x - 1) = (x - 1)(x - 3)
c. (x - 1)(x - 2) - (x + 2)(x + 1) = 8
1. Tìm x:
a. 2x.(2x-1)^2 - 3x.(x+3).(x-3) - 4x.(x+1)^2 - x^3 = x^3 - 16.x^2 + 1
b. x.(x-2)^2 + 3x.(2x-1)^2 - 13.x^2 + 16.x^2 = 5x+2
2. Tính nhanh
a. 127^2 + 146 x 127 + 73^2
b. 9^8 x 2^8 - ( 18^4 - 1 ) x ( 18^4 + 1 )
help pls
Tìm x biết
a) 3(1-4x).(x-1)+4(3x-2).(x+3)=-27
b) (x+3).(x2-3+9)-.(x-1).(x+1)=27
c) 2x2+3(x-1).(x+1)=5x.(x+1)
d) 8(x-1).(x+5)-(x+2).(x+5)=3(x-1).(x+2)
Tìm x, biết:
a.(x-3).(x+3)=(x-5)^2
b.(2x+1)^2-4x.(x-1)=17
c.(3x-2).(3x+2)-9.(x-1).x=0
d.(3-x)^3-(x+3)^3=36x^2-54x
e.x^3-6x^2+12x-8=27
Bài 1: Tìm x, biết:
a) 4.(x+1)^2+(2x-1)^2-8(x-1)(x+1)=11
b) (x-2)^3-x(x+2)(x-2)+6x(x-3)=0
c) (x-1)(x^2+x+1)-x(x-3)(x+3)=6
Bài 2: Tìm GTNN của:
a) A= x^2-2x+10
b) B= x^2-5x-7
c) C= 3x^2+3x-5
Tìm x
a. 3.(x-2)+2.(x-3)=13
b. (x+1).(2-x)-(3x+5).(x+2)=-4x2+1
c.x.(5-2x)+2x.(x-1)=13
d. (2x+3)2-(x-1)2=0
e. x2.(3x-2)-8+12=0
f x2+x=0
g. x3-5x=0
1.Tìm x
a ) ( x-3). (x+3) - x2 = 2x
b ) (x+4). ( x-1) +x.( x-3) -2x2 = 13
8 tháng 9 2021 lúc 14:22
Bài 4: Tìm x, biết:
a) 3(2x – 3) + 2(2 – x) = –3 ; b) x(5 – 2x) + 2x(x – 1) = 13 ;
c) 5x(x – 1) – (x + 2)(5x – 7) = 6 ; d) 3x(2x + 3) – (2x + 5)(3x – 2) = 8 ;
e) 2(5x – 8) – 3(4x – 5) = 4(3x – 4) + 11; f) 2x(6x – 2x 2 ) + 3x 2 (x – 4) = 8.