Whakaoti mō x
x=-\frac{\pi }{2}-\frac{5}{4}\approx -2.820796327
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+5=-2\pi
Tangohia te 2\pi mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
4x=-2\pi -5
Tangohia te 5 mai i ngā taha e rua.
\frac{4x}{4}=\frac{-2\pi -5}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{-2\pi -5}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=-\frac{\pi }{2}-\frac{5}{4}
Whakawehe -2\pi -5 ki te 4.
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