Answer: x+4
Step-by-step explanation:
(x-9)(x+4)= x^2-5x-36
Step-by-step explanation:
the sequence is arithmetic due to the common difference that is equal
d=11-15=7-11=-4
a(n) = a1 +(n-1)d
a1=15
Then :
a(n) = 15+(n-1)-4
hope this helps
55 is the estimated answer
The answer should be the 1st one.
Just use the quadratic formula and plug in the necessary numbers when requested and work from there.