Kaylabear Kaylabear

20-05-2014
Mathematics

Answered

Solve the following equation algebraically. Represent your answer in simplest radical form, if necessary.
x^2 + x = 30

Answer :

kate200468 kate200468

20-05-2014

[tex]x^2 + x = 30\\\\x^2 + x - 30=0\\\\x^2+6x-5x-30=0\\\\x(x+6)-5(x+6)=0\\\\(x+6)(x-5)=0\\\\x+6=0\ \ \ \ \ \ or\ \ \ \ \ \ x-5=0\\\\x=-6\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=5[/tex]

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