SOLUTION: Could you please show step by step how to multiply this out? Thanks so much! (x+5)(75/x

SOLUTION: Could you please show step by step how to multiply this out? Thanks so much! (x+5)(75/x - .50) = 75

Question 399406: Could you please show step by step how to multiply this out?
Thanks so much!
(x+5)(75/x - .50) = 75
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(x+5)(75/x - .50) = 75
(x)(75/x) - (x)*0.50 + 5(75/x) - 5(0.50) = 75
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75 - 0.5x + 375/x - 0.25 = 75
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-0.5x + 375/x - 0.25 = 0
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Multiply thru by -x to get:
0.5x^2 - 375 + 0.25x = 0
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Multiply thru by 100 and rearrange to get:
50x^2 + 25x - 37500 = 0
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Divide thru by 25 to get:
2x^2 + x - 1500 = 0
----
Solve using the Quadratic formula.
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Cheers,
Stan H.
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