Answer:
Step-by-step explanation:
(a + b)² = a² + 2ab +b²
a = y & b = 10
(y + 10)² = y² + 2 *y*10 + (10)²
= y² + 20y + 100
Answer:
The equation of line in the form of Ax + By = C is: 
Step-by-step explanation:
We need to find the equation of line, having slope m = -4 and passes through point (-2,-9)
First we need to find slope and y-intercept of the line.
The slope is given i.e. m = -4
Now, we need to find the y-intercept
Using the point (-2,-9) and slope m = -4, y-intercept can be found using:

Now, the equation of required line having slope m = -4 and y-intercept b = -17 is:

Now writing in form of Ax + By = C

So, the equation of line in the form of Ax + By = C is:
.
Answer:
12x +54
Step-by-step explanation:
3x + 9(X+6) =
Distribute
3x+9x +54
12x +54
Answer:
50
Step-by-step explanation: