Pre-Algebra Examples

Find the sum of

- 10 x^{2} - x + 6

$- 10 x^{2} - x + 6$ and

10 x^{2} - 5

$10 x^{2} - 5$

Step 1

Write the problem as a mathematical expression.

- 10 x^{2} - x + 6 + 10 x^{2} - 5

$- 10 x^{2} - x + 6 + 10 x^{2} - 5$

Step 2

Combine the opposite terms in

- 10 x^{2} - x + 6 + 10 x^{2} - 5

$- 10 x^{2} - x + 6 + 10 x^{2} - 5$ .

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Step 2.1

Add

- 10 x^{2}

$- 10 x^{2}$ and

10 x^{2}

$10 x^{2}$ .

- x + 6 + 0 - 5

$- x + 6 + 0 - 5$

Step 2.2

Add

- x + 6

$- x + 6$ and

0

$0$ .

- x + 6 - 5

$- x + 6 - 5$

- x + 6 - 5

$- x + 6 - 5$

Step 3

Subtract

5

$5$ from

6

$6$ .

- x + 1

$- x + 1$

⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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