Step-by-step explanation:
Step 1: Simplify

Step 2: Factor out common terms

Step 3: Simplify

Step 4: Subtract the numbers 4 - 15 = -11

Step 5: Simplify

Explanation in words:
- To solve this equation, the first step is to simplify the equation.
- To solve this equation, the second step is to factor out the common terms in this equation
- To solve this equation, the third step is to simplify the equation from step two.
- To solve this equation, the fourth step is to subtract the numbers 4 - 15 = -11
- To solve this equation, the fifth step is to simplify the equation from step four.
Answer:
Hope this helps.