Find the square of 16 (2x-3y) - the square of 9 (X-Y)

Find the square of 16 (2x-3y) - the square of 9 (X-Y)

The square of 55x - 174xy + 135y

(2x-y) square root + the square of Y - 6y + 9 = 0, then what is the value of X + y?

4.5
(2x-y) square root > = 0
The square of Y - 6y + 9 > = 0
The conditions for the equal sign to hold are as follows: (2x-y) square root = 0; the square of Y - 6y + 9 = 0
So, y = 3, x = 1.5
x+y=4.5

Given [2x + 4] ² + |9-3y | = 0, then y square of x =?

It is known that [2x + 4] & # 178; + | 9-3y | = 0,
2x+4=0 x=-2
9-3y=0 y=3
Y square of x = (- 2) to the third power = - 8

2X square - 10x = - 12x =?

2X square - 10x = - 12
x²-5x=-6
x²-5x+6=0
(x-3)(x-2)=0
x=3,x=2

How to solve the equation x-18 = (x-25) x2?
The third x is the multiplication sign

X-18=(X-25)x2
X-18=2X-50
2X-X=50-18
X=32

For the equation of X, 5x + 6m = 18, and the solution of this equation is a positive integer (and x > 0), M =?
All kinds of systems

5x+6m=18
5x=18-6m
x=(18-6m)/5
When m = 1 / 2, x = 3
When m = 4 / 3, x = 2
When m = 13 / 6, x = 1
x>0
(18-6m)/5>0
18-6m>0
6m

All positive integer solutions of bivariate linear equation 2x + 5Y = 30 are

X = 10, y = 2 or x = 5, y = 4, right~

Positive integer solutions of bivariate linear equation 2x + 5Y = 11

X is a positive integer
x>=1
x=(11-5y)/2>=1
11-5y>=2
5y

What is the positive integer solution of quadratic equation 2x + 5Y = 11?
The difference between one-third of X and two times of Y is nonnegative.

3,1

All positive integer solutions of bivariate linear equation 2x + 5Y = 10

First, find a special solution, x0 = 5, Y0 = 0
The general explanation is as follows:
x=x0+5k=5+5k
y=y0-2k=-2k
5 + 5K > 0, and - 2K > 0, K ∈ Z
-1