SOLUTION: (3x+5)(x-1)=x^2+9x-1

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Question 606315: (3x+5)(x-1)=x^2+9x-1
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
%283x%2B5%29%28x-1%29=x%5E2%2B9x-1
3x%5E2+-3x+%2B+5x+-+5+=+x%5E2%2B9x-1
3x%5E2+%2B2x+-+5+=+x%5E2%2B9x-1
2x%5E2+-7x+-4+=+0
%282x%2B1%29%28x-4%29+=+0
so either 2x+1=0 or x-4=0
and x is either -1/2, or 4