Algebra Examples

$f (x) = 6 x - 12$ $g (x) = 5 x + 1$ $h (x) = x^{2} - 4$

Step 1

Replace the function designators with the actual functions in $f (x) + g (x) + h (x)$ .

$6 x - 12 + 5 x + 1 + x^{2} - 4$

Step 2

Simplify.

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Step 2.1

Add $6 x$ and $5 x$ .

$11 x - 12 + 1 + x^{2} - 4$

Step 2.2

Simplify by adding and subtracting.

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Step 2.2.1

Add $- 12$ and $1$ .

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

Step 2.2.2

Subtract $4$ from $- 11$ .

$11 x + x^{2} - 15$