Basic Math Examples

$0 = z (z + 4)$

Step 1

Rewrite the equation as $z (z + 4) = 0$ .

$z (z + 4) = 0$

Step 2

If any individual factor on the left side of the equation is equal to $0$ , the entire expression will be equal to $0$ .

$z = 0$

$z + 4 = 0$

Step 3

Set $z$ equal to $0$ .

$z = 0$

Step 4

Set $z + 4$ equal to $0$ and solve for $z$ .

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Step 4.1

Set $z + 4$ equal to $0$ .

$z + 4 = 0$

Step 4.2

Subtract $4$ from both sides of the equation.

$z = - 4$

Step 5

The final solution is all the values that make $z (z + 4) = 0$ true.

$z = 0, - 4$