jhkle13
What are the solutions of 5x2 = 15x?



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robz8
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5x^2 = 15x
bring everything to one side
5x^2 + 15x = 0
factor
5x(x+3) = 0
so what are the roots of the equation?

robz8
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aka what values for x satisfy the equation?

jhkle13
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5x2 + 15x

OpenSessame
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You could do it that way or use the quadratic equation.

jhkle13
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this is a challenge question on my math packet and i have no idea how to do it

OpenSessame
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dw:1377664883571:dw

jhkle13
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dw:1377664967670:dw

OpenSessame
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dw:1377664962852:dw

jhkle13
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b=15?

robz8
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no reason to do the quadratic equation here.... factoring is much simpler

jhkle13
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i just need an answer plz because i do not understand this

robz8
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how will giving you the answer help you understand?

jhkle13
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its a challenge question i'm not suppose to understand yet

OpenSessame
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@jhkle13 Sometimes finding the answer is simpler

OpenSessame
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Just plug in the stuff for that equation, you'll get the answer. But im not telling it to you.