The input values that would produce that output value, we set the output equal to the function's formula and solve for the input.
Answer:
-15 plus or minus the square root of 65 all over 4 (All over means fraction)
35=(5+2)+4
35=7+4
35=11
false so their is no answer
There are 6 different combinations of 2 books from the group of 4 that he could choose to do.
Let's say all of the books were letters.
Books a, b, c, and d.
Different combinations include:
ab, ac, ad, bc, bd, and cd.
