4*(x-1)^2=9 How to solve it

4*(x-1)^2=9 How to solve it

(x-1)²=9/4
x-1=-3/2,x-1=3/2
x=-1/2,x=5/2

5(X-4)-9=1-2(9-X)
Four or six

5（X-4)-9=1-2(9-X)
5X-20-9=1-18+2X
5X-29=2X-17
3X=18
X=6

4.5-x+1.9=9.2
Lie equation

On both sides + X, get
4.5+1.9=9.2+x
6.4=9.2+x
If you subtract 9.2 from both sides, you get x = - 2.8

As shown in the figure, in △ ABC, ab = AC

Certification:
∵AB＝AC
∴∠B＝∠C
∵∠A+∠B+∠C＝180
∴∠B＝（180-∠A）/2
∵∠A＞0
∴∠B＜180/2＝90
The acute angle is B

Newton's second law formula, what is each letter, what is the unit

F = KMA, generally K is 1, that is, f = ma
F is the force, it is a vector, the unit is Newton (n), M is the mass of the object, not a vector, the unit is kg, a is the acceleration, it is a vector, the unit is m / S & #;

How to solve 2x-3x = 7 / 24

1/3x=7/24
x=7/8

The area of a square is 24 square centimeters. What is the perimeter of the square?

Side length = √ 24 = 2 √ 6
Ψ perimeter = 2 √ 6 × 4 = 8 √ 6cm

What is the railway design speed of 200km / h and above

V = 200km / h = 200 * 1000 / 3600 M / S = 55.56 M / S P = f * V = 4 * 10000000 n * 55.56 M / S = 2222.22 w ≈ 2.22 * 10 to the sixth power kw P = FV = 4000000n

7/9x-5/9=1/3x-1/9
Quick answer to solving equation

7/9x-5/9=1/3x-1/9
7/9x-1/3x=5/9-1/9
4/9x=4/9
x=4/9÷4/9
x=1

A piece of square cardboard with a side length of 6cm is cut into a circle with a radius of 1cm. How many pieces can you cut?

A total of 9 can be cut. First, divide the big square into small squares with a side length of 2 cm, and a total of 9 can be cut. Each small square can be cut into a circle with a radius of 1 cm, and a total of 9 circles can be cut