What are the values of x in the equation 4x2 + 4x – 3 = 0? x = –1.5, 0.5 x = –0.5, –1.5 x = StartFraction negative 4 plus or minus StartRoot negative 32 EndRoot Over 8 EndFraction x = StartFraction negative 4 plus or minus StartRoot negative 64 EndRoot Over 8 EndFraction