Answer:
its A
Step-by-step explanation:
Answer:
Step-by-step explanation:
( B ) . No; the input value x = - 5 pairs with two output values.
Answer:
Depends
Step-by-step explanation:
Depends on how many questions you missed. I'm going to assume that you mean you somehow missed every question. So, 86% - 25% would be 46%.
Factor by grouping.
0 = (x^3 +4x^2) +(9x +36) = x^2(x+4) +9(x+4) = (x^2+9)(x+4)
The first factor is the difference of squares (in complex numbers), so the form for factoring that can be used:
a^2 - b^2 = (a -b)(a +b)
Here, a=x, b=3i.
Then the factorization in complex numbers is
0 = (x -3i)(x +3i)(x +4)
Solutions are the values of x that make these factors be zero.
x = -4, -3i, 3i
-3 x -4 = 12
Because the negatives cancel each other out
Therefore leaving you with 3 x 4 and that equals 12
