Precalculus Examples

$f (1) = 3 x^{4} - x^{2} + 4 x - 2$

Step 1

Replace the variable $x$ with $1$ in the expression.

$f (1) = 3 {(1)}^{4} - {(1)}^{2} + 4 (1) - 2$

Step 2

Simplify the result.

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Step 2.1

Simplify each term.

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Step 2.1.1

One to any power is one.

$f (1) = 3 \cdot 1 - {(1)}^{2} + 4 (1) - 2$

Step 2.1.2

Multiply $3$ by $1$ .

$f (1) = 3 - {(1)}^{2} + 4 (1) - 2$

Step 2.1.3

One to any power is one.

$f (1) = 3 - 1 \cdot 1 + 4 (1) - 2$

Step 2.1.4

Multiply $- 1$ by $1$ .

$f (1) = 3 - 1 + 4 (1) - 2$

Step 2.1.5

Multiply $4$ by $1$ .

$f (1) = 3 - 1 + 4 - 2$

$f (1) = 3 - 1 + 4 - 2$

Step 2.2

Simplify by adding and subtracting.

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Step 2.2.1

Subtract $1$ from $3$ .

$f (1) = 2 + 4 - 2$

Step 2.2.2

Add $2$ and $4$ .

$f (1) = 6 - 2$

Step 2.2.3

Subtract $2$ from $6$ .

$f (1) = 4$

$f (1) = 4$

Step 2.3

The final answer is $4$ .

$4$

$4$

Step 3

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$