Question 247339
Why would you foil this?
:
Assuming the problem is
6x^2 + 5 = 2x^2 + 1
:
6x^2 - 2x^2 = -5 + 1
:
4x^2 = -4
Divide both sides by 4
x^2 = -1
x = {{{sqrt(-1)}}}
x = i
:
:
Check solution in original equation
6(i^2) + 5 = 2(i^2) + 1
We know that i^2 = -1
6(-1) + 5 = 2(-1) + 1
-6 + 5 = -2 + 1
-1 = -1