If inequality KX ^ - 2x + 6K

If inequality KX ^ - 2x + 6K

kx²-2x+6k0
The original inequality can be reduced to:
k(x+3)(x+2)
1.75x-1.2X45%=1.56
1.75x-1.2X45%=1.56
1.75x-0.54=1.56
1.75x=1.56+0.54
1.75x=2.1
x=2.1/1.75
x=1.2
1.75x-1.2X45%=1.56
1.75x-5.4=1.56
1.75x=6.96
x=6.96÷1.75
X = 3 and 171 out of 175
If the solution set of inequality 1 / 3 (KX + 9) > 2x is X
If the solution set of inequality 1 / 3 (KX + 9) > 2x is X
1.75x minus 1.2 × 45% is equal to 1.56
1.75x-1.2*0.45=1.56
1.75x=1.56+0.54
x=1.2
The simple way is to divide
Solve the inequality about X: 2x ^ 2 + kx-k ≤ 0 (k is all real numbers)
2x^2+kx-k≤0
△＝k^2+4k
When △ 0, i.e. k > 0 or K < 4, the equation has two unequal real roots
x=(-k±√△）/4
Then the solution set of 2x ^ 2 + kx-k ≤ 0 is (- K - √ △) / 4
36% of a number is 26 more than 23%. What's the number? (solving the equation) 2 / 3 of a number is 12 more than 1 / 2 of it. What's the number? (solving the equation)
Let this number be X
36%X-23%X=26
0.13X=26
X=200
Let this number be X
2/3X-1/2X=12
1/6X=12
X=72
Let this number be X. let this number be X
36%X-23%X=26 2/3X-1/2X=12
13% x = 26... Expanded
Let this number be X. let this number be X
36%X-23%X=26 2/3X-1/2X=12
13%X=26 4/6X-3/6X=12
0.13X=26 1/6X=12
X = 200 x = 72
On X inequality KX ^ 2-2x + 1
A:
kx^2-2x+11
f(2)=4k-4+1=4k-30
Then f (x) has zero point on the interval (1,2)
f(1)=k-2+1=k-1>0,k>1
f(2)=4k-4+1=4k-3
Solution equation: 12 + x = (36 + x) * 1 / 2
I'm from primary school
12+X=18+0.5X
Transfer of items
0.5X=18-12
0.5X=6
If both sides of the equation are multiplied by 2, we get
X=12
12+x=(36+x)1/2
24+2x=36+x
2x-x=36-24
x=12
Kx-1 = 2x, X is a positive real number, the range of the value of K? Note: inequality
Kx-1 = 2x, we get that: (K-2) x = 1, x = 1 / (K-2) x is positive real number, that is, 1 / (K-2) is positive real number, positive real number > 0, so 1 / (K-2) > 0, so k > 2
How to solve the equation with 0.36-x = 0.12
x=0.36-0.12
x=0.24
Please give me a good comment,
x=0.36-0.12 x=0.24
Subtract 0 from both sides of the equation. 12 x = 0.36-0.12 x = 0.24
This is 0.24
0.36-x ＝0.12
0.36-0.12=x
Q: is there any other way