KuisssDiketahui:[tex] \sqrt{ xy - 7x + 7y} = x[/tex]Berapakah nilai x yang memenuhi persamaan diatas.... Question from @BlackAssassiin

November 2023 1 7 Report

Kuisss

Diketahui:
[tex] \sqrt{ xy - 7x + 7y} = x[/tex]

Berapakah nilai x yang memenuhi persamaan diatas?

#part 11

√(xy - 7x + 7y) = x

xy - 7x + 7y = x²

x² - xy + 7x - 7y = 0

x(x - y) + 7(x - y) = 0

(x + 7)(x - y) = 0

x + 7 = 0

x = -7

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