Algebra Examples

$f (2) = 2^{2} - 4 \cdot 2 - 5$

Step 1

Simplify each term.

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Step 1.1

Raise $2$ to the power of $2$ .

$f (2) = 4 - 4 \cdot 2 - 5$

Step 1.2

Multiply $- 4$ by $2$ .

$f (2) = 4 - 8 - 5$

$f (2) = 4 - 8 - 5$

Step 2

Simplify by subtracting numbers.

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Step 2.1

Subtract $8$ from $4$ .

$f (2) = - 4 - 5$

Step 2.2

Subtract $5$ from $- 4$ .

$f (2) = - 9$

$f (2) = - 9$

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