Answer: you would times everything I don’t remember how I did this but I did it by multiplying everything hope I helped and you would add the cm with the answer you got
-x^2 + 7 is the simplified expression
Answer:
factor left the side of the equation
(2k_9)(k+2)=0
set factors equal to 0
2k_9=0 or k+2=0
the answer is K= 9/2 or K =-2
