Answer:
(3x + 5)^2 expands into two binomials: (3x + 5)(3x +5)
from there, you foil them:
(3x + 5)(3x + 5)
multiply the first terms ... 9x^2
the inside terms ... 9x^2 + 15x
outside terms ... 9x^2 + 15x + 15x
last terms ... 9x^2 + 15x + 15x + 25
then add like terms ... 9x^2 + 30x + 25
The point-slope form:
We have the point (-1, 7) and the slope m = 2. Substitute:
X = -1/2 (negative)
y = - 1.8 (negative)
so It's in Quadrant 3
I think it might be x + b square
Answer:
x = 6, y = -8
Step-by-step explanation:
First we take the equations side by side and put them like this:
6x + 2y = 16
+ 2x - 2y = 32
8x = 48
Then solve for x.
x = 6
Then insert x back into either equation
2(5) - 2y = 32
10 - 2y = 32
solve for y,
y = -10
