Answer:
f(x)^-1=-1
f(x)=x^3+1+3x^2+3x
Step-by-step explanation:
5a - 10*3 = 45
5a - 30 = 45
5a = 45 + 30
5a = 75
a = 15
Answer:
Not entirely positive of about the answers, but all of the values would equal 15
First Y = 5
First X = 15
Second X = -3
B² - 4ac
= 8² - 4*(-2)*(-9)
= 64 - 72
= -8