Integrating
gives

Notice that
forces all terms in the sum to be 0, so that

and hence

making the first option correct.
You multiply the number outside the parenthesis with both of the numbers in the parenthesis separately.
Answer
120=7x+15
Step-by-step explanation:
Answer:
Graph the system on linear equations.
Step-by-step explanation:
(-4, 4) & (-4, -6)