When distributing the negative three into the parentheses, that canceled out the -5 and made it a positive 15
Answer:
A cubic function is a polynomial function of degree 3. So the graph of a cube function may have a maximum of 3 roots. i.e., it may intersect the x-axis at a maximum of 3 points. Since complex roots always occur in pairs, a cubic function always has either 1 or 3 real zeros. It cannot have 2 real zeros.
Step-by-step explanation:
Answer:
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I think the answer would be a.