Question from quadratic equation.

solve.

(x-3) (x+7) = 0

3 or - 7

Step-by-step explanation:

For it to equal 0, x must be 3 or - 7 because anything multiplied by 0 is 0. So you take each part, x-3 and see how you can make that a 0. x-3=0, therefore x must be 3. Other part x+7=0, x must be - 7.

x = 3, - 7

Step-by-step explanation:

Since you already have the factored form, all you need to do is set the equations equal to zero to find you roots:

x - 3 = 0

x + 7 = 0

x = 3, - 7