Suppose you take out a 30 year mortgage for $210,488 at an annual interest rate of 3.8%. after 20 years, you refinance to an annual rate of 1.3% how much interest did you pay on this loan? round answer to the nearest dollar.

step-by-step explanation:

42.4

step-by-step explanation:

convert to decimal

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11