Answer:

Step-by-step explanation:
y = 18 + 3x²
- 18 - 18
__________

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Answer:
24
Step-by-step explanation:
Let n = number of sides
15n = 360
divide both sides of the equation by 15
n = 24
Answer:
x2 + 10x +25 = (x+5)^2
Step-by-step explanation:
x^2 + 10x
To complete the square
Take the coefficient of x
10
Divide by 2
10/2 =5
Square it
5^2 =25
Add it
x2 + 10x +25
The coefficient of x divided by 2 is the factor we add to x inside the square
(x+5)^2
Answer:
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Step-by-step explanation: