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Verified answer
Jawab5x² - 4x - 3 = 0 , akar akarnya x1 dan x2
x1 + x2 = -b/a = 4/5
x1 x2 = c/a = - 3/5
persamaan kuadrat baru akar akar
p = - x1
q = - x2
p+ q = -(x1 + x2) = - 4/5
p q = - x1 (-x2) = x1 x2 = - 3/5
PK baru x² - (p+q) x + (p. q)= 0
x² - (-4/5) x + (-3/5)=0
x² + 4/5 x - 3/5 = 0 ...} kalikan 5
5x² + 4x - 3 = 0