Understand and apply concepts of expressions - HiSET

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Question

A quadratic function has two zeroes, 3 and 7. What could this function be?

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Answer

A polynomial function with zeroes 3 and 7 has as its factors and . The function is given to be quadratic, so this function is

.

Apply the FOIL method to rewrite the polynomial:

Collect like terms:

,

the correct choice.

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