How do you factor #y= 4x ^ { 2} - 4x - 5#?

1 Answer
EZ as pi
Jun 13, 2017

There are no rational solutions.
THe expression does not factorise.

Explanation:

There are no rational factors.

There are no factors of 4 and 5 which subtract to give 4.

Testing #sqrt(b^2 -4ac)# leads to #sqrt96#

#96# is not a square number.

Related questions
Impact of this question
2072 views around the world
You can reuse this answer
Creative Commons License