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3 cards from this section. Quick, good the night before a test.
What is the zero of the polynomial P(x) = x + 3?
Set the polynomial equal to zero.
Find the zeros of P(x) = x^2 - 4.
Factor the polynomial.
What is a zero of a polynomial?
Think about how zeros relate to x-axis intersections.
The discriminant indicates the nature of the roots. True or False?
Remember the meaning of the discriminant in the quadratic formula.
Find the roots of the polynomial P(x) = 3x^2 - 12x + 12. What does the discriminant tell you about the nature of the roots?
Calculate the discriminant first and check if it leads to a double root.
Given the quadratic polynomial P(x) = x^2 + 4x + 5, analyze its zeros and the nature of its roots.
Focus on the discriminant to determine if roots can be real.
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