Question

x2 - 10x + 25/
5x2 – 26x + 5​

Answer 1

a) x² - 10x + 25

∆ = -10² - 4 1 25

∆ = 100 - 100

∆ = 0

x = - (-10) ± √0 / 2.1

x = 10/2 ± = ± 5

b) 5x² - 26x + 5

∆ = -26² - 4 5 5

∆ = 676 - 100

∆ = 576

x = - (-26) ± √576 / 2.5

x = 26 ± 24 / 10

x' = 26+24/10 = 50/10 = 5

x" = 26-24/10 = 2/10 = 0,2