We can substitute our solutions back into the given equation and simplify to check if our answers are correct. We will start with v=4.
(v-4)(v-7)=0
( 4-4)( 4-7)? =0
0=0 âś“
Substituting and simplifying created a true statement, so we know that v=4 is a solution of the equation. Let's move on to v=7.
(v-4)(v-7)=0
( 7-4)( 7-7)? =0
0=0 âś“
Again, we created a true statement. v=7 is indeed a solution of the equation.
