\(a,5-3x\ge0\)
\(\Rightarrow-3x\ge-5\)
\(\Rightarrow x\le\frac{5}{3}\)
\(b,2-4x\le0\)
\(\Rightarrow-4x\le-2\)
\(\Rightarrow x\ge\frac{2}{4}\)
\(\Rightarrow x\ge\frac{1}{2}\)
\(c,4x-7\ge0\)
\(\Rightarrow4x\ge7\)
\(\Rightarrow x\ge\frac{7}{4}\)
giai phuong trinh:
a)2x(x+5)-(x-3)^2 = x^2 +6
b)(4x+7)(x-5)-3x^2=x(x-1)
Giai bat phuong trinh :
2x( 8x - 1)2 (4x -1)=9
Giup em voi a
Giai cac bat phuong trinh sau va bieu dien tap nghiem cua bat phuong trinh tren truc so:
a. 2(3x-1)-2x<2x-1
b. 4x-8≥3(3x-2)+4-2x
c. 3(x-2)(x+2)<3x²+x
d. (x+4)(5x-1)>5x²+16x+2
a, cho a<b c/minh 2a-3<2b-3
b, tim x sao cho gia tri cua bieu thuc
c, giai bat phuong trinh \(\frac{4x-5}{3}\)>\(\frac{7-x}{5}\)
giai phuong trinh
1, -3x \(\ge\)\(\frac{1}{5}\)
giai bat phuong trinh
a,\(|2-x|+5=0\)
b, \(|3-2x|+x=0\)
c,\(2x-|x+4|=7\)
3(1-2x)<= 4(5-3x/2)
giai bat phuong trinh
bài 1 : giai các phuong trinh sau :
a, (9x^2-4) (x+1) = (3x+2) (x^2-1)
b, x^4+ x^3 +x +1=0
c,x^5 - 5x^3 +4x=0
4+3x<5
giai phuong trinh
2x(8x - 1)^2 (4x - 1) = 9
(12x + 7)^2 (3x + 2)(2x + 1) = 3
giai chi tiet gium nha mik tick cho