Pre-Algebra Examples

$- x^{4} + 4 x + 23 x + 10 \div x - 5$

Step 1

Write $- x^{4} + 4 x + 23 x + 10 \div x - 5$ as an equation.

$y = - x^{4} + 4 x + 23 x + 10 \div x - 5$

Step 2

Simplify $- x^{4} + 4 x + 23 x + 10 \div x - 5$ .

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Step 2.1

Rewrite the division as a fraction.

$y = - x^{4} + 4 x + 23 x + \frac{10}{x} - 5$

Step 2.2

Add $4 x$ and $23 x$ .

$y = - x^{4} + 27 x + \frac{10}{x} - 5$

Step 3

The given equation $y = - x^{4} + 27 x + \frac{10}{x} - 5$ can not be written as $y = k x^{2}$ , so $y$ doesn't vary directly with $x^{2}$ .

$y$ doesn't vary directly with $x$