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Verified answer
Persamaan KuadratSyarat memiliki 2 akar sama : D = 0
4x² + (m - 2)x + 25 = 0
a = 4
b = m - 2
c = 25
D = 0
b² - 4ac = 0
(m - 2)² - 4(4)(25) = 0
m² - 4m - 396 = 0
(m + 18)(m - 22) = 0
m = -18 atau m = 22