Tolong ya .……!!! Penjelasannya juga

x² - 3x - 4 = 0
(x - 4)(x + 1) = 0
x1 = 4 dan x2 = -1
x1/x2 - 1 = (4/-1) - 1 = -4 - 1 = -5
x2/x1 - 1 = (-1/4) - 1 = -1/4 - 4/4 = -5/4
persamaan baru
x² - (-5 - 5/4)x + (-5 × -5/4) = 0
x² - (-20/4 - 5/4)x + 25/4 = 0
x² + 25/4 x + 25/4 = 0
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4x² + 25x + 25 = 0