Question

6) Solve for x using the quadratic formula. Write your answer correct to the
significant figures. (x - 1)² – 3x + 4 = 0.​

Answer 1

Answer:

(x - 1)² – 3x + 4 = 0

x² + 1 -2x -3x +4 = 0

x² -5x + 5 = 0

x. = (-b plus minus √D)/2a

here D = b² -4ac

D = 25 - 4(5)

D = 5

x = (5. plus minus √5)/2

x can be (5+√5)/2

and x. can be (5-√5))2