Examples

f (x) = x^{4} + x^{3} - 11 x^{2} - 5 x + 30

$f (x) = x^{4} + x^{3} - 11 x^{2} - 5 x + 30$ ,

g (x) = 2 x - 2

$g (x) = 2 x - 2$

Step 1

Replace the function designators with the actual functions in

f (x) + g (x)

$f (x) + g (x)$ .

x^{4} + x^{3} - 11 x^{2} - 5 x + 30 + 2 x - 2

$x^{4} + x^{3} - 11 x^{2} - 5 x + 30 + 2 x - 2$

Step 2

Simplify.

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Step 2.1

Add

- 5 x

$- 5 x$ and

2 x

$2 x$ .

x^{4} + x^{3} - 11 x^{2} - 3 x + 30 - 2

$x^{4} + x^{3} - 11 x^{2} - 3 x + 30 - 2$

Step 2.2

Subtract

2

$2$ from

30

$30$ .

x^{4} + x^{3} - 11 x^{2} - 3 x + 28

$x^{4} + x^{3} - 11 x^{2} - 3 x + 28$

x^{4} + x^{3} - 11 x^{2} - 3 x + 28

$x^{4} + x^{3} - 11 x^{2} - 3 x + 28$

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