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torioricker
10.12.2020 •
Mathematics
For all values of x,
f(x)=2x^2 and g(x)=x+1,
solve fg(x) = gf(x)
thank you :)
Solved
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Ответ:
Step-by-step explanation:
Solution
Step 1. Find ( f + g ) ( x )
Since ( f + g ) ( x ) = f ( x ) + g ( x ) then;
( f + g ) ( x ) = ( 2x + 1 ) + (x2
+ 2x – 1 )
= 2x + 1 + x2
+ 2x – 1
= x
2
+ 4x
Step 2. Find ( f + g ) ( 2 )
To find the solution for ( f + g ) ( 2 ), evaluate the solution above for 2.
Since ( f + g ) ( x ) = x2
+ 4x then;
( f + g ) ( 2 ) = 22
+ 4(2)
= 4 + 8
= 12
Ответ:
mate i believ it is the middle three but your gonna smash it
good luck :)