SOLUTION: The functions f(x) = x^2 − 1 and g(x) = x + 3 are defined on the set of real numbers.
If f (g(a)) = 4 , find ‘a’ correct to 2 significant figures. Thanks :)
Algebra ->
Customizable Word Problem Solvers
-> Evaluation
-> SOLUTION: The functions f(x) = x^2 − 1 and g(x) = x + 3 are defined on the set of real numbers.
If f (g(a)) = 4 , find ‘a’ correct to 2 significant figures. Thanks :)
Log On
Question 783430: The functions f(x) = x^2 − 1 and g(x) = x + 3 are defined on the set of real numbers.
If f (g(a)) = 4 , find ‘a’ correct to 2 significant figures. Thanks :) Answer by oscargut(2103) (Show Source):
You can put this solution on YOUR website! f(g(a)) = f(a+3)= (a+3)^2 =4
a^2+6a+9=4
a^2+6a+5 = 0
a = -1 or a = -5
If you need more help with similar questions you can contact me now at:
mthman@gmail.com
Thanks
