Question

x^2-7x+8=-4 is a quadratic equation solve by using formula method

Answer 1

Step-by-step explanation:

x^2-7x+8 = 0

x1 = (-b+√b^2-4ac)/2a

x2 = (-b-√b^2-4ac)/2a

x1 = (7+√49-32)/2 = (7+√17)/2

x2 = (7-√17)/2