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Mathematics
Evan Lam
21 November, 09:10
X^2 - 4x - 77 = 0 Factor and check
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Aliyah Mann
21 November, 09:36
0
X² - 4x - 77 = 0
(x + 7) (x - 11)
x + 7 = 0
x - 11 = 0
x = - 7
x = 11
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