(x^{2})-2x-15rightarrow 0

Emily-Jane Bray 2021-02-15 Answered
(x2)2x150
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Jayden-James Duffy
Answered 2021-02-16 Author has 91 answers
x22x150
x25x+3x150
x(x5)+3(x5)0
(x5)(x+3)0
5 and -3 are critical points hence, x(,3][5,)
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