9514 1404 393
Answer:
- (x +1)² = 4
- (D) x = -1 ±2
Step-by-step explanation:
Start by getting the x-terms on one side of the equal sign. We can do that by subtracting x from both sides.
3 = x² +2x
Now, add the square of half the x-coefficient.
3 +1 = x² +2x +1
(x +1)² = 4 . . . . . . . . write as a square in the desired form
__
To solve, take the square root, and add the opposite of the left-side constant.
x +1 = ±2
x = -1 ±2 . . . . . . matches choice (D)
Answer:
959.72
Step-by-step explanation:
you have to simplify
Answer:The answer is 12.8
Step-by-step explanation:
8 and 10 are the side lengths so you would put that check mark thingy and then under it you put 8 squared and 10 squared and then you add it up. If you have the side length and the right length (which is the x) you would subtract because the right length is the longest.
The answer is B because if the result is 3/4 and the question is asking to the result then you would an equation.
Answer:
A
Step-by-step explanation:
A