Algebra Examples

$3 z - 7 z^{2} - 5 z + 5 z^{2} + 2 z^{2}$

Step 1

Subtract $5 z$ from $3 z$ .

$- 7 z^{2} - 2 z + 5 z^{2} + 2 z^{2}$

Step 2

Add $- 7 z^{2}$ and $5 z^{2}$ .

$- 2 z^{2} - 2 z + 2 z^{2}$

Step 3

Combine the opposite terms in $- 2 z^{2} - 2 z + 2 z^{2}$ .

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Step 3.1

Add $- 2 z^{2}$ and $2 z^{2}$ .

$- 2 z + 0$

Step 3.2

Add $- 2 z$ and $0$ .

$- 2 z$