If r=-3, then it would be -3-12 which equals -15
The polynomial equation
given that 2 is zero of
f(x) = 
According to the question,
f(x) 

Hence, the polynomial equation
given that 2 is zero of f(x)
.
Learn more about polynomial equation here
brainly.com/question/1720316
#SPJ4
m = (-10 + 25)/(-1 + 4) = 15/3 = 5
so
5 = (20 + 10)/(n + 1)
5(n+1) = 30
5n + 5 = 30
5n = 25
n = 5
Answer
n = 5