Question

If x=1+i is a factor of ax2+bx+c then what is another factor?

Answer 1

Answer:

Step-by-step explanation:

The other root is 1-i because all the irrational roots occur in conjugate pairs

The conjugate of 1+I is 1-i

Therefore the roots oslf ax^2+bx +c are 1+I and 1-i