Answer:
can u please add the statements.
Step-by-step explanation:
Answer: what do you need help with
Explanation: you never posted a problem
Its D 15+15+15= 45 so there for it will be 45
X^2 + 2x = -1......take half of ur x term (2x), and square it. So we take half of 2, which is 1, and square it....1^2 = 1....so u would add 1 to both sides