4 years ago

If f (x) =3x+10x and g(x)=5x-3,find (f+g)(x)

Mathematics

2 answers:

skad [1K]4 years ago

5 0

Answer:

$(f+g)(x)=3x^2+15x-3$

Step-by-step explanation:

$f(x) = 3x^2+10x\\g(x) = 5x-3$

Adding both

$(f+g)(x) = 3x^2+10x+5x-3$

$(f+g)(x)=3x^2+15x-3$

mars1129 [50]4 years ago

5 0

Answer:

3x^2 +15x -3

Step-by-step explanation:

(f +g)(x)= f(x) + g (x)

(f +g)(x)= 3x^2 + 10x + 5x -3

= 3x^2 +15x -3

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