Answer:
or 
Step-by-step explanation:
To solve this problem you must:
- Convert the mixed numbers to fractions, as following:


- Multiply both fractions. Mutilply the numerators and the denominators:

- Simplify. Therefore, you obtain that the answer is:
or 
<u>Story Problem</u>
Mr. Bill Gates bought a house in Italy for
and a house in Canada for
. What is the total cost of the two houses?
we know that
The total cost is the sum of the cost each house
so

therefore
the answer is
The total cost is 
Answer:
x³ - 6x² + 18x - 10
Step-by-step explanation:
(f - g)(x) = f(x) - g(x)
= x³ - 2x² + 12x - 6 - (4x² - 6x + 4)
= x³ - 2x² + 12x - 6 - 4x² + 6x - 4 ← collect like terms
= x³ - 6x² + 18x - 10