Solve for x using the quadratic formula. Write your answer correct to two significant figures (x -1)² – 3x + 4 = 0.
(x – 1)^{2} – 3x + 4 = 0
x^{2} + 1 – 2x – 3x + 4 = 0
x^{2 }– 5x + 5 = 0
Comparing it with
ax^{2} + bx + c = 0, we get
a = 1, b = - 5, c = 5
By using the formula,