Answer:
Step-by-step explanation:
X2 -8 = 7x
X2 -7x -8 = 0
X2 -8x+x -8=0
X(x-8)+1(x-8) =0
(X-8)(x+1)=0
X-8=0 or x+1=0
X=8 or x=-1
22h=22
So h=1
This answer is the only mistake in the equation
Answer:
1/12
Step-by-step explanation:
Step-by-step explanation:
This is most easily solved by writing the factored form:

Notice how, if we were to substitute -9 for x, the left part would be -9 + 9 = 0. Since (x + 1) × 0 = 0, this makes the function 0. The same logic applies for the right part.
Answer: X=7
Step-by-step explanation:
Add 12 to both sides.
Divide both sides by 4.
Then you'll get 7 for X