So 7 x = x2 -18 so you get the quadratic x^2 -7x -18 and then get 2 x -9= -18 and 2 + -9 = -7 so you get (x + 2) ( x - 9) so the positive solution would be x-9 = 0 so x= 9. Hope this helps :)
A. -23
If 7x plus 3 equals 24, X equals 3. -5 minus 6 time X(3) equals -23.
Answer:
Expanded: (y-3)(y-3)(y-3)
Simplified: 
Step-by-step explanation:
Expanded: (y-3)(y-3)(y-3)
Simplified:



Answer:
Instead of wasting hours of your life doing that, just use Desmos (website)
Step-by-step explanation: