February 25, 2017

Homework Help: pre calc

Posted by gabs on Friday, May 20, 2011 at 10:38am.

A polynomial f(x) with real coefficients and leading coefficient 1 has zeros 6 + 4i, -5 + i and degree 4. Express f(x) as a product of quadratic polynomials with real coefficients that are irreducible over R.

ive done this problem every which way i could. specifically i understand that imaginary numbers come in pairs so i wrote: 6+4i, 6-4i, -5+i, -5-i and i put all thos equal to x, subtracted the x so the equation is equal to zero and then began to multipy them .
can someone please write out the steps for me and then give me the format this answer is supposed to be in..PLEASE HELP!

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