Answer:
(x+1)²= 49, the answer is B
Step-by-step explanation:
x² + 2x = 48
x² + 2x + (2/2)² - (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² - (2/2)²]
(x+1)²= 49, the answer is B
It would be 3.909769126x10^10 hope this helps and all you have to is convert to standard form if you want me to do that ill do it its no problem
Your answer would be 729. hope that helped
