Find a cubic function with the given zeros. square root of two., - square root of two., -2 f(x) = x3 + 2x2 - 2x + 4 f(x) = x3 + 2x2 + 2x - 4 f(x) = x3 - 2x2 - 2x - 4 f(x) = x3 + 2x2 - 2x - 4\

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

Step-by-step explanation:

Hi!

We  only need to multiply the following monomials:

(x - √2)

(x + √2)

(x + 2)

Since each of them has a zero in the required values.

Therefore:

(x - √2)*(x + √2)*(x + 2) = (x + 2)*(x^2 - 2)

*Here I have used the property:

(x-a)*(x+a) = x^2-a^2

*with a = √2

(x - √2)*(x + √2)*(x + 2) = (x + 2)*(x^2 - 2) = x^3 -2x + 2x^2 - 4

That is:

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

The correct answer is the third

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9 x 8 divided by (5-3)=36