How do you factor #2x ^ { 2} + x - 25#?
1 Answer
Jan 8, 2018
You can't factorise
Explanation:
As the coefficient is greater than one, you have to multiply the number, and you can then factorise from there. This gives the result:
You would then need to find two number that add to make 1 and multiply to make -50. This isn't possible so therefore you would need to use another method to factorise it, possibly completing the square.
