Answer:
6x^2 -10
Step-by-step explanation:
(5x²+2) - (-4x²+7)+(-3x²-5)
Distribute the minus sign
(5x²+2) +4x²-7 +(-3x²-5)
Combine like terms
5x²+4x²-3x² +2-7-5
n=2/3
n=1/2÷3/4
n=1/2×4/3
n=4/6
The answer is C that is X=27
view the picture for step by step solution