I was given a bunch of quadratic homework and I'm stuck on a few problems:(adsbygoogle = window.adsbygoogle || []).push({});

"Brendan buys a black of shares for $1895. When the share price goes up by $4/share, he sells all but 15 of them for $1740. How many shares did he buy?"

I got the equation [tex]\frac{1895}{x} - \frac{1740}{x + 4} = 15[/tex] but I worked it out and I don't get the answer (~73).

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"A rectangular field has a perimeter 500 m and an area 14 400 m^2. Find the lengths of its sides."

[tex]l * w = 14 400[/tex]

[tex]2l + 2w = 500[/tex]

Not sure what to do from here...

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Thanks in advance for any help

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# Homework Help: Quadratic homework

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