x2-72=0
how to find factorisation for this?
Answers
Answered by
2
Step-by-step explanation:
In this case the quadratic trinomial can be factored. x2−x−72=0 find factors of 72 which differ by 1. Either of the factors could be equal to 0 . x=9 orx=−8 are the two solutions.
...
To solve a quadratic equation (one with an x2 term), there are three options:
Factorise.
Completing the square.
quadratic formula
Similar questions