Answer:

Step-by-step explanation:
Given:

Solve for:

Solution:
Step 1: Select the formula to solve for 
There are some ways to solve quadratic equations.
One of the simple way (if possible) is performing the factorization.
Another way is using the quadratic formula.
Here, we are going to use factorization.
Step 2: Perform factorization

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or 
Hope this helps!
:)
Answer:
3.375
Step-by-step explanation:
Answer: 5
Step-by-step explanation:
y=-4x-8
To find x-intercept / zero , substitute y=0
0=4x-8
Move <u>Variable</u> to the left-hand side and change its sign
-4x=-8
Divide both sides of the equation by -4
Answer: x=2