Mathematics, 18.07.2019 12:30 rubencharomarti
What are the solutions of the equation x6 + 6x3 + 5 = 0? use factoring to solve.
Answers: 2
![x^6 + 6x^3 + 5 = 0\\\\substitute, x^3=y\\\\y^2+6y+5=0\\\\y^2+5y+y+5=0\\\\y(y+5)+1(y+5)=0\\\\(y+5)(y+1)=0\\\\y=-1,-5\\\\\text{substitute back }y=x^3\\\\x^3=-1,-5\\\\x=-1,\sqrt[3]{-5} \\\\\text{These are the only real solutions}\\](/tpl/images/0103/9825/84510.png)
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What are the solutions of the equation x6 + 6x3 + 5 = 0? use factoring to solve....
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