<span>B. 2d^2+6d-7. Should be the correct answer.</span>
The correct answer is 2x^3-40x-180
Answer:
-18.4 + 35.4
Step-by-step explanation:
Use the method keep; change; flip.
Keep the negative -18.4
Change the minus sign to a plus sign
Flip the -35.4 to a positive 35.4
Even though the equations are different the answer is still the same.
Hope this helps!
I used the completing the square method to get the (x+2)^2. The final line is in standard form.