Question

What is the value of -4d2 + 15d2 = 5 for d = 1?

Answer 1

Explanation:

-4(1)^2 + 15(1)^2 =5

-4 + 15 = 5

since the equation is false, 15-4 does not equal 5 , then something has been left off the equation. look carefully , did you forget anything?