Pre-Algebra Examples

find the sum of $10 x^{2} - 10 x - 6$ and $x + 6$

Step 1

Write the problem as a mathematical expression.

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

Step 2

Combine the opposite terms in $10 x^{2} - 10 x - 6 + x + 6$ .

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Step 2.1

Add $- 6$ and $6$ .

$10 x^{2} - 10 x + x + 0$

Step 2.2

Add $10 x^{2} - 10 x + x$ and $0$ .

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

Step 3

Add $- 10 x$ and $x$ .

$10 x^{2} - 9 x$