If and , find . A. B. C. D.

Mathematics

1 answer:

trapecia [35]3 years ago

4 0

Answer: option D. 2x^2 + (3/2)x - 5

Explanation:

1) polynomials given:

f(x) = x/2 - 2 and g(x) = 2x^2 + x - 3

2) question: find (f + g) (x)

That means that f(x) + g(x), so you have to add up the two polynomials given.

3) x/2 - 2 + 2x^2 + x - 3

4) Combine like terms:

a) terms with x^2: you only have 2x^2, so it is not combined with other term.

b) terms with x: x/2 + x

that is a sum of fractions: x/2 + x = [x + 2x] / 2 = 3x / 2 = (3/2)x

c) constant terms: - 2 + (-3) = - 2 - 3 = - 5

5) Result: 2x^2 + (3/2)x - 5

That is the option d.

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4 years ago

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Sloan [31]

Its b because the equation pretty much says that is fx is gx when x is subtracted by 2

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3 years ago

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AHH HELP ME AGAIN :P THERES ONE MORE AFTER THIS

mihalych1998 [28]

Answer:

26.25