Answer:6x^3+16x^2-42x-40
Step-by-step explanation:
To expand
(-2x-8)(-3x^2+4x+5)
6x^3-8x^2-10x+24x^2-32x-40
Collect like terms
6x^3-8x^2+24x^2-10x-32x-40
6x^3+16x^2-42x-40
Answer:
8 posts.
Step-by-step explanation:
There are 7 lengths of 7 feet in 49 feet.
That is 7 posts but there is a post at each end so the number required = 7 + 1 = 8 posts.
Addition bc. you need adding to both sides x and will get this result of 3x+2 = 11
hope helped
Step-by-step explanation:
In the problem 5 is raised to an odd exponent(9). Thus, there is no way to halve it apart from doing 5^4.5, which equals 1397.54249, which is not a whole number.
Hope it helps <3
Answer:
D = 
Step-by-step explanation:
