The zero of the function f(x) = (x + 3)(x - 7)(x + 5) is x = -3
The function is given as:
f(x) = (x + 3)(x - 7)(x + 5)
Set f(x) to 0
(x + 3)(x - 7)(x + 5) = 0
Split
x + 3 = 0 or x - 7 = 0 or x + 5 = 0
Solve for x
x = -3, or x = 7 or x = -5
Hence, the zero of the function f(x) = (x + 3)(x - 7)(x + 5) is x = -3
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