Finite Math Examples

$(r - s) (x - 4)$

Step 1

Expand $(r - s) (x - 4)$ using the FOIL Method.

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Step 1.1

Apply the distributive property.

$r (x - 4) - s (x - 4)$

Step 1.2

Apply the distributive property.

$r x + r \cdot - 4 - s (x - 4)$

Step 1.3

Apply the distributive property.

$r x + r \cdot - 4 - s x - s \cdot - 4$

$r x + r \cdot - 4 - s x - s \cdot - 4$

Step 2

Simplify terms.

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Step 2.1

Simplify each term.

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Step 2.1.1

Move $- 4$ to the left of $r$ .

$r x - 4 \cdot r - s x - s \cdot - 4$

Step 2.1.2

Multiply $- 4$ by $- 1$ .

$r x - 4 r - s x + 4 s$

$r x - 4 r - s x + 4 s$

Step 2.2

Move $- 4 r$ .

$r x - s x - 4 r + 4 s$

$r x - s x - 4 r + 4 s$

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