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The sum of two complex numbers is 6 and their product is 10. One number is?
We assume that we are dealing with a quadratic equation. The sum of two numbers is -b/a=6. Our product is c/a=10.
A quadratic equation is defined as Ax^2+Bx+C=0.
So, let's simply test our solutions to see which ones hold. We know that imaginary solutions for quadratics come in pairs or conjugates. By testing our answers, we see that C. 3+ i is the only answer to satisfy the solution.
3+i and 3-i. The sum is 6. The product is 10. C. We are done.