Polynomial roots

Find the other zeroes of the polynomial 2x4+3x3-3x2-6x-2, if two of them are root2 & -root2

Correct answer:

x3 =  -0.5
x4 =  -1

Step-by-step explanation:

x1=2=21.4142 x2=2=21.4142  (xx1)(xx2) = x22 2x4+3x33x26x2 = (x22)(2x2+3x+1)  2z2+3z+1=0  2z2+3z+1=0  a=2;b=3;c=1 D=b24ac=32421=1 D>0  z1,2=2ab±D=43±1 z1,2=43±1 z1,2=0.75±0.25 z1=0.5 z2=1  x3=z1=(0.5)=0.5

Our quadratic equation calculator calculates it.


Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips for related online calculators
Are you looking for help with calculating roots of a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: