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Mathematics 20 Online
OpenStudy (anonymous):

Quadratic formula 4x^2+4x=3 I got X=-3/2. X=1/2 Correct?

hartnn (hartnn):

yup, this one is correct too.

OpenStudy (anonymous):

Is there a way for me to check my own work?

OpenStudy (anonymous):

plug ur answers back into the equation

OpenStudy (anonymous):

I tried that and it did not work . I must have made a math error.

OpenStudy (anonymous):

use a calculator to make the check work solid.

OpenStudy (anonymous):

especially if you know it has to equal a whole number .. like 3. then you can just plug decimals since calculators like those.

OpenStudy (anonymous):

if you have a graphic calculator you can program it to do the quadratic for you for the purposes of checking your answers.

hartnn (hartnn):

4(1/2)^2 + 4(1/2) 4(1/4)+4/2 1+2 3

hartnn (hartnn):

4(-3/2)^2 + 4(-3/2) 4(9/4)-6 9-6 3

OpenStudy (anonymous):

Oh dang I am an idiot.'i used both values.

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