-15/30-(-x)=3/5-(-12/15)
-15/30-(-x)=7/5
-x=-19/10
x=19/10
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Tim x, bt:
a) 4.(18- 5x) - 12.( 3x-7) =15.(2x-16) - 6.(x+14)
b) 5.(3x+5) - 4.(2x-3) =5x + 3x(2x-12) +1
Tìm x biết
a/3x*(12*x-4)-9*x*(4x-3)=30
b/x*(5-2*x)+2*x*(x-1)=15
cho bieu thuc \(Q=\frac{12x-15}{x^2-7x+12}-\frac{x+5}{x-4}+\frac{2x-3}{3-x}\) . Tim x de gia tri cua Q nguyen
tìm x ,biết
a, x^2 -4x =12
b, ( 5x+1)^2 - (5x -3)(5x+3)=30
c, (x-1) ( x^2 +x +1 ) + x(x +2) (2-x)=5
d, 5x(x-3)^2 -5 (x-1)^3 +15 (x+4) (x-4) =5
a, x+5/4-2x-3/3=6x-1/3+2x-1/12
b,5x-1/10+ 2x+3/6=x-8/15-x/30
các bn giúp mk vs, càng nhanh càng tốt
thank's
tìm x biết:
a) - (-30) - (-x) = - (+13)
b) - (+12) - (+x) = 20
c) (-34) -x= - (-45)
d) - (-x) + (-15) = (-12)
e) (-15) -x = - (-7)
3, tim x, biet ;
a,\(3x\left[12x-4\right]-9x\left[4x-3\right]=30\)
b,\(x\left[5-2x\right]+2x\left[x-1\right]=15\)
20 tháng 2 2023 lúc 17:59
Giải phương trình: x + 2/5 - x/3 = x - 12/15
giup minh phan tich da thuc thanh nhan tu 1)x^2+4x+32)x^2-4x+33)x^2-x-54)x^2+4x-55)-x^2-x+66)x^2+7x+107)-x^2-3x+108)x^2+7x+129)x^2+4x+310)(x^2-2x+63)11)x^2+10x+2412)-x^2-4x+2113)2x^2+11x+1214)x^2-x+3015)x^2+11x+3016)2x^2+5x-1217)x^2-5x-1418)2x^2+9x+919)x^2+x-7220)-2x^2-15x+2721)x^2-x-1222)-x^2+x+1523)-x^2+5x+1424)x^2-7x-18lam on !!!!!!!!!!!!!!!!!!!!!!!.....!
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giup minh phan tich da thuc thanh nhan tu
1)x^2+4x+3
2)x^2-4x+3
3)x^2-x-5
4)x^2+4x-5
5)-x^2-x+6
6)x^2+7x+10
7)-x^2-3x+10
8)x^2+7x+12
9)x^2+4x+3
10)(x^2-2x+63)
11)x^2+10x+24
12)-x^2-4x+21
13)2x^2+11x+12
14)x^2-x+30
15)x^2+11x+30
16)2x^2+5x-12
17)x^2-5x-14
18)2x^2+9x+9
19)x^2+x-72
20)-2x^2-15x+27
21)x^2-x-12
22)-x^2+x+15
23)-x^2+5x+14
24)x^2-7x-18
lam on !!!!!!!!!!!!!!!!!!!!!!!.....!