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Alika [10]
3 years ago
5

Write the quadratic function f(x) = 3(x + 1)(x – 7) in standard form.

Mathematics
1 answer:
Sveta_85 [38]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Given

f(x) = 3(x + 1)(x - 7) ← expand the factors using FOIL

     = 3(x² - 6x - 7) ← distribute the parenthesis

      = 3x² - 18x - 21 → B

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