Question 305350
{{{2x^2+x-1=0}}}
You can factor this quadratic,
{{{(2x-1)(x+1)=0}}}
Two solutions:
{{{2x-1=0}}}
{{{2x=1}}}
{{{highlight_green( x=1/2)}}}
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{{{x+1=0}}}
{{{highlight_green(x=-1)}}}