Answer:
x³ + 7x² - 6x - 72
Step-by-step explanation:
Given
(x + 6)(x + 4)(x - 3) ← expand the second and third factor, that is
(x + 4)(x - 3)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x - 3) + 4(x - 3) ← distribute both parenthesis
= x² - 3x + 4x - 12 ← collect like terms
= x² + x - 12
Now multiply this by (x + 6) in the same way
(x + 6)(x² + x - 12)
= x(x² + x - 12) + 6(x² + x - 12) ← distribute both parenthesis
= x³ + x² - 12x + 6x² + 6x - 72 ← collect like terms
= x³ + 7x² - 6x - 72
Hello AskMeBosh
The missing number in this equation is 7
This is because 9 * 7 is 63
<u><em>So your answer would be 7 </em></u>
:)
Answer:
I'd say that it is 3:4 because
Step-by-step explanation:
9 is 3/4s of 12.
12 is 3/4s of 16
15 is 3/4s of 20.
Hope this helped you out!
4 feet
Step-by-step explanation:
there's 12 inches in a foot. so 48÷12= 4 feet