2x^2+3
x=3
2(3)^2+3
2(9)+3
18+3
21 is the answer.
Answer:

Step-by-step explanation:
The image below shows step-by-step on how to solve it.
<em>Hope this helps! </em>:)
Ben had -5 dollars, and sue had nine hundred ninety-nine thousand nine hundred ninety-four dollars.
You must mean the depth of the submarine.
to make sum = zero the depth of the sub must be -1600 ft..