Guess the idiom 0 2 4 6 8 10 according to the number

Guess the idiom 0 2 4 6 8 10 according to the number

Because the numbers are even, there are no odd numbers~

Guess the idiom 1x1 = 1 〔 1 / 2 〕 7 / 2 〕 24 6 8 10 〕 9999 〕 5 / 4 〕 according to the number

1x1 = 1
1 / 2
7 / 2 [no three no four]
2 4 6 8 10
9999 [none in a million]
5 / 4

Guess idioms 2,4,6,8,10 ()

Guess idioms 2,4,6,8,10 according to the numbers

1 → 10 → 100 guessing idioms by numbers

One thing (ten) hundred

Guess idioms by numbers: 0 + 0 = 1 () 9999 ()

0 + 0 = 1 () is "out of nothing"
9999 () is "safe"

（5x*0.85+9(66-x)*0.8）/(5x+9(66-x))=1-0.18

（5x*0.85+9(66-x)*0.8）/(5x+9(66-x))=1-0.18
（4.25x+7.2*(66-x)）/(5x+9(66-x))=0.82
4.25x+7.2*(66-x)=(5x+9(66-x))*0.82
4.25x+7.2*(66-x)=4.1x+7.38(66-x)
4.25x-4.1x=7.38(66-x)-7.2*(66-x)
0.15x=0.18(66-x)
0.15x=11.88-0.18x
0.15x+0.18x=11.88
0.33x=11.88
x=36

Solve the equation 5x-3 × 7 / 10 = 7 / 55-2 / 3x = 1 / 3 2x + 40% x = 7.25 × (x-1 / 3) = 2

5X—3×7/10=7/5
5x=7/5+21/10
5x=3.5
x=0.7
5—2/3X=1/3
2/3x=5-1/3
2/3x=14/3
x=14/3*3/2
x=7
2X+40%X=7.2
2.4x=7.2
x=3
5×（X—1/3）=2
5x-5/3=2
5x=2+5/3
5x=11/3
x=11/3*1/5
x=11/15

What is the root of the equation x4-5x2 + 6 = 0?

(x^2-2)(x^2-3)=0
There are four roots: 2 under the positive and negative root sign and 3 under the positive and negative root sign

Solve the following inequality X4 + 5x2-6 < 0

x4+5x2-6＜0
(x^2-1)(x^2+5)

Find the solution of x4-4x3 + 5x2-2 = 0 (the first 4,

X ^ 4-4x ^ 3 + 5x ^ 2 = 2 is that right? The answer is 1