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drek231 [11]
3 years ago
15

Help:( i’ll give brainliest

Mathematics
1 answer:
almond37 [142]3 years ago
7 0
My gut says go with 5/7
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If x = 3 is a zero of the polynomial function f(x) = 2x3 + x2 − 25x + 12, which of the following is another zero of f(x)?a. x =
FromTheMoon [43]

Answer:

b) x=-4 is another zero of the polynomial

Step-by-step explanation:

Since you are given a set of options to choose from, a very simple way to find the zero of the polynomial is by simply plugging each  value from the options and seeing which of them gives the answer 0.

f(x) = 2x^3+x^2-25x+12\\

Using all the options:

a)\,f(-3) = 2(-3)^3+(-3)^2-25(-3)+12\\f(-3) = 42\\\\b)\,f(4) = 2(4)^3+(4)^2-25(4)+12\\f(4) = 56\\\\c)\,f(-4) = 2(-4)^3+(-4)^2-25(-4)+12\\f(-4) = 0\\\\d)\,f(12) = 2(12)^3+(12)^2-25(12)+12\\f(12) = 3312

Now we know that at x = -4 the value of the polynomial f(x) is 0. hence

b) x=-4 is another zero of the polynomial

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2 years ago
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alukav5142 [94]

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Step-by-step explanation:

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3 years ago
What is the value of a if a is equal to a×a×a=a+a+a
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Step-by-step explanation:

a×a×a=a+a+a

Simplifying each side

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Take the square root of each side

sqrt(a^2) = ±sqrt(3)

a = ±sqrt(3)

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Step-by-step explanation:

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