persamaan 5x² - 6x - 3 = 0 mempunyai akar akar m dan n dengan m

langsung aja y

5x² - 6x - 3 = 0
a = 5
b = -6
c = -3

X1,2 = -b ± √b² - 4ac / 2a
X1,2 = 6 ± √(-6)² - 4.5.(-3) / 2.5
X1,2 = 6 ± √36 + 60 / 10
X1,2 = 6 ± √96 / 10
X1,2 = 6 ± 4√6 / 10

X1 = 6 + 4√6 / 10
X1 = 2 (3+2√6) / 10
X1 = 3+2√6 / 5

X2 = 6 - 4√6 / 10
X2 = 3-2√6 / 5

maka
m < n
m = 3-2√6 / 5 dan n = 3+2√6 / 5
m+n = (3-2√6 / 5) + (3+2√6 / 5)
m+n = (3 + 3 - 2√6 + 2√6) / 5
m+n = 6/5

semoga berguna +_+