First one right gets BRAINLIEST!! If f(x)=x²+2x-3 and g(x)=x²-9, find (f/g) 4 and (f+g)(4)
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Given:
f(x)=x²+2x-3
g(x)=x²-9
find (f/g) 4 and (f+g)(4)
Solution:
(f/g)(4) = ((4)²+2(4)-3 )/ (4)²-9
(f/g)(4) = (16+8-3)/16-9
(f/g)(4) = 21/ 7
(f/g)(4) = 3
(f+g)(4) = ((4)²+2(4)-3 ) + (4)²-9
(f+g)(4) = (16 + 8 -3) + (16 - 9)
(f+g)(4) = 21 + 7
(f+g)(4) = 28