Mathematics, 07.04.2021 01:30, sulemmaa

Which statement about f(x) = x2 + 4x – 21 is true? A. The zeros are – 7and -3, because f (x) = (x + 7)(x + 3)
B. The zeros are 3 and 7, because f(x) = (x – 3)(x – 7)
C.
The zeros are –3 and 7 , because f(x) = (x+3)(x – 7)
D.
The zeros are –7and 3 , because f(x) = (x – 3)(x + 7)

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Which statement about f(x) = x2 + 4x – 21 is true? A. The zeros are – 7and -3, because f (x) = (x +...