If you know the formular a^3+b^3=(a+b)(a^2-ab+b^2), you can solve this problem.
8 is 2 cubed, so x^3+2^3=(x+2)(x^2-2x+4)
so the other quadratic factor is x^2-2x+4
Answer:
45 feet
Step-by-step explanation:
Use ratios:
![\frac{1}{72}= \frac{7.5}{x}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B72%7D%3D%20%5Cfrac%7B7.5%7D%7Bx%7D)
x = 540 inches
divide by 12 to get 45 feet
Answer: the answer is C
Step-by-step explanation: trust me took the final yesterday ♀️
Answer:
D(x=1).
Step-by-step explanation:
2(5x+8)=6x+20
10x+16=6x+20
10-6x+16=6x-6x+20
4x+16=20
4x+16-16=20-16
4x=4
4x/4=4/4
x=1