Question

IF 1 and - 2 are zero of the polynomial (x³-4x²-7x+10) find its third zero​

Answer 1

Step-by-step explanation:

Solution. (x+2) is a factor of f(x). Consequently, (x–1) (x+2) = (x^2 + x – 2) is a factor of f(x). Hence, the third zero is 5.