How do you solve #v^2 - 14v = -49#?
1 Answer
Jun 27, 2015
First add
Now
So the solution is
Explanation:
Having added
Notice that
So this is zero when
Perfect square trinomials are of the form:
In our case
If you see a quadratic with first and last terms being square, check the middle term to see if it's a perfect square trinomial.