How do you factor #2x^{2}+4x-6#?
2 Answers
Jun 11, 2018
You cannot (unless you use imaginary numbers, i.e. i).
Maybe check that there is no typo.
Explanation:
The Quadratic Formula: For
Here, a=2, b=4 and c=-6, so
since you cannot take the square root of a negative number (-48), there are no real factors of teh equation. this means that, when plotted on a graph, the X-axis is never crossed.
Jun 11, 2018
Explanation:
#"take out a "color(blue)"common factor "2#
#=2(x^2+2x-3)#
#"the factors of - 3 which sum to + 2 are + 3 and - 1"#
#=2(x+3)(x-1)#