Answer:
x ≈ - 1.56
x ≈ 2.56
Step-by-step explanation:
x^2 - x = 4
x^2 - x + 1/4 = 17/4
( x - 1/2 )^2 = 17/4
x - 1/2 =Sqrt[17]/2 or x - 1/2 = - (Sqrt[17]/2)
x = 1/2 + Sqrt[17]/2 or x = 1/2 - (Sqrt[17]/2)
The formula - b +- srt(b^2 - 4ac) / 2a could also be used
