solve -4x^2+12x-11=0

Question

solve using the quadratic formula

Answer 1

x = [-12 ± √ ( (12)² - 4(-4)(-11) )] / (2(-4)) = [-12 ± √(-27)] / (-8) = [-12 ± √27 i] / (-8) = (-12 ± 3√3 i) / (-8)