Note that a quadratic equation is in the form:
ax²+bx+c
We use the quadratic formula which is:
x = -b ± √(b²-4ac)
2a
So:
c = 4 ± √(16+48) = 4 ± √64 = 4 ± 8 = 0.5 ± 1
8 8 8
So c can be equal to 1.5 and -0.5
So: (c-1.5)(c+0.5) = c²-c-0.75
We need to multiply this by 4 for it to be equal to the given, so the factors would be:
(2c-3)(c+1)
