I hope this helps you
3x-5+5=9+5
3x=14
x=4,66666....
By (i believe) multiplying the base by the height. I hope this helps!
Answer:
8 + 2x
Step-by-step explanation:
You are adding 8 to 2 times an unknown number.
Group terms that have factorable coefficients (like 2&4 and then 9&18)
(4x³ + 2x²) + (-18x - 9)
factor out the like terms
2x²(2x + 1) - 9(2x +1)
parenthesis are the same so you can factor further.. {Like 2x+3x = (2+3)x}
(2x² - 9)(2x+1)
Factored too far they only want Answer C. is the correct one for grouping