Let's group the cubic function:

.
The first two roots are

however to find the last two roots we need to solve the square equation:

. Now we know the discriminator, using the discriminator we're able to find the roots of the equation:

. The roots of the square equation are

and

.
The roots of the cubic function are

,

and

.
Answer:
y = |x| + 1
Step-by-step explanation:
7/8 you have to make 1/4 into 2/8 and 2/8+5/8=7/8
Answer:
62.5%
Step-by-step explanation:
5/8 = 0.625 = 62.5%