Question

f(x)=3x+2 and g(x)=x-3. Find f(x)-g(x)

a. 4x-1
b. 2x-1
c. 2x+5
d. 2x-5​

Answer 1

Answer:

• First step is to plug in the given values :

$\longrightarrow \tt3x + 2 - ( x - 3)$

• Remove the bracket and change the signs of those terms which are inside bracket since there is a negative sign.

$\longrightarrow \tt \: 3x + 2 - x + 3$

• Collect like terms

$\longrightarrow \tt 3x - x + 2 + 3$

$\longrightarrow \boxed{ \tt 2x + 5 }$

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