Answer:
x = 8 base angle = 81 degrees
Step-by-step explanation:
Answer:
A) 18+81=9(x^2+6x+9)
D)11+(x+3)^2
Step-by-step explanation:
To solve this by completing the square, we want to get it to the form of: (x + 3)^2 = 9
There are multiple ways to get there.
First we could divide by 9 to get.
x^2 + 6x = 0
Then, add 9 to both sides to get:
x^2 + 6x + 9 = 9
Factor the left side:
(x + 3)^2 = 9
Now, you can solve this equation by completing the square.
(*I think you have a typo in your answer choices)
Read more on Brainly.com - brainly.com/question/9252180#readmore
A.
You can either use long division or just plug it in and see which one works. It has to end with 11 because last number is 88. So either A or C then test those 2
