Question

P(x)=x³-x²+7x-7
with solution:3

Answer 1

Answer:

Real root is x = 1.

Complex roots are x = ±√7 i

Step-by-step explanation:

If x = 1 , P(x) = 0 so that is one zero of the function.

Dividing by x - 1 gives the quotient x^2 + 7.

x^2 + 7 = 0

x^2 = -7

x = ±√7 i