SOLUTION: Determine the quadratic equation with integral coefficients having the roots: 2 + √ 7 and 2 - √ 7

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Question 656860: Determine the quadratic equation with integral coefficients having the roots:
2 + √ 7 and 2 - √ 7

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If is a zero of a quadratic polynomial, then is a factor of the polynomial. Find your quadratic by multiplying the two factors:



Hint: Do the multiplication as if you were doing treating as and as , and remembering the product of a conjuate pair (the "L" part of the FOIL process here) is the difference of two squares.

John

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