How do you solve #5x^2 - 125 = 0#?
2 Answers
Start by factorizing.
Explanation:
Start by factorizing
then you can divide both sides by 5 and since
rearrange so that 25 is on the right hand side
Explanation:
To make progress, an attempt should be made to have just
By inspection, both
So, dividing both sides of the equation by
implies
that is
Now
that is
You will recognise
implies
that is
or