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December 18, 2014

December 18, 2014

Posted by **...** on Wednesday, September 5, 2007 at 11:39pm.

Equation: 2x^2 = 11

Answer: Square root of 22 over 2, Negative square root of 22 over 2; 2.35, -2.35

Equation: 3m^2 - 4m = -2

Answer: 2 +/- i (imaginary sign) square root of 2 over 3

- Math 12 - Review - Quadratic -
**bobpursley**, Thursday, September 6, 2007 at 8:21amThe first:

x^{2</sup?=11/2 x= sqrt (11/2) which is an ok answer. Some purists dont like sqare roots of fractions, so ... x= sqrt [(11/2)(2/2)] x= sqrt (22/4)= 1/2 sqrt 22 On the last, change it to a quadratic.. 3m2 -4m + 2=0 then the quadratic equation x= (4 +- sqrt (16-24))/6 x= 2/3 +- [sqrt (-8)]/6 x= 2/3 +- sqrt (-8/36) then reduce that (the second part reduces to sqrt (-2/9) or 1/3 sqrt -2 }

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