Answer:
<u>864000</u>
Step-by-step explanation:
12 feet is one inch so you times the numbers 75x12 and 80x12. 900+960=864000.
Answer:
3(x - 5)(x + 1).
Step-by-step explanation:
3x^2 - 12x - 15
Dividing through by 3:
= 3(x^2 - 4x - 5)
We need 2 numbers whose sum is -4 and whose product = -5. That is -5 and +1 , so the factors are:
3(x - 5)(x + 1).