f(x) = -2x-3 and g(x) = x^2+5x then calculate f(2)+g(1)

We have :

f (x) = - 2 x - 3

We add the definition:

g (x) = x^{2} + 5 x

Applying the definitions,

f (2) + g (1)

becomes

- 2 \times 2

- 3

+ 1^{2}

+ 5 \times 1

Let's calculate:

- 2 \times 2

- 3

+ 1^{2}

+ 5 \times 1

ℹ

-2 \times 2

-4

‖

1^{2}

1

‖

- 3 + 1

-2

‖

5 \times 1

5

- 4 - 2 + 5

ℹ

- 4 - 2

-6

- 6 + 5

▷Answer: $-1$