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givi [52]
3 years ago
14

Given: F(x) = x + 2 and G(x) = 3x + 5 (F*G) (x) =

Mathematics
2 answers:
Debora [2.8K]3 years ago
7 0

Answer:

\boxed{(f \times g)(x) = 3 {x}^{2}  + 11x + 10}

Step-by-step explanation:

Foil:

x times 2x

2 times 3x

x times 5

2 times 5

then add them all up

vovangra [49]3 years ago
5 0

Answer:

\boxed{(f \times g)(x) = 3 {x}^{2}  + 11x + 10}

Given:

f(x) =  x + 2 \\  \\ g(x) =  3x + 5

To Find:

(f \times g)(x) = f(x) \times g(x)

Step-by-step explanation:

=  > f(x) \times g(x) = (x + 2)( 3x + 5) \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =x( 3x + 5) + 2(3x + 5)  \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =3 {x}^{2}  + 5x + 6x + 10\\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =3 {x}^{2}  + 11x + 10

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