Question

Find the roots for the following equation: x(x + 9) = 0.

A {0, 1/9}
B {0, -9}
C {9}
D {0, 9}

Answer 1

when we have an equation like the following we can separate it like this.\[x=0,\ x+9=0\]

Answer 2

so from this, we know that one of the roots is 0. Right? Solve the other equation to find the remaining root.