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If f(x) = 2x^3 + 4x^2, and f(-4) = 0, then find all of the zeros of f(x) algebraically.

User Daxeh
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Final answer:

To find the zeros of the function f(x) = 2x^3 + 4x^2 algebraically, we substitute -4 into the function and solve. The zeros of the function are x = -4, x = 0, and x = -2.

Step-by-step explanation:

To find the zeros of the function f(x) = 2x^3 + 4x^2, we can set f(x) equal to zero and solve for x. In this case, we are given that f(-4) = 0. So we substitute -4 into the function and solve:

2(-4)^3 + 4(-4)^2 = 0

Using the properties of exponents, we simplify this to:

-128 + 64 = 0

Therefore, -4 is one of the zeros of the function. To find the other zeros, we can factor out x.

2x^3 + 4x^2 = x(2x^2 + 4x)

Setting each factor equal to zero, we have:

x = 0

2x^2 + 4x = 0

Factoring out a common factor of 2x:

2x(x + 2) = 0

Setting each factor equal to zero, we have:

x = 0

x + 2 = 0

Therefore, the zeros of the function f(x) = 2x^3 + 4x^2 are x = -4, x = 0, and x = -2.

User AProperFox
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