Mathematics: Let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated operation, then find the domain. (f-g)(x) a. x^2-4; domain: positive real numbers b. 2x^2-4; domain: all real numbers c. x^2-4; domain: all real numbers d. 2x^2-2; domain: all real numbers

Let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated

Ответ:

keel5468

01.01.2022

F(x) = 2x² + x - 3
g(x) = x - 1
(f - g)(x) = (2x² + x - 3) - (x - 1)
(f - g)(x) = 2x² + (x - x) + (-3 + 1)
(f - g)(x) = 2x² - 2

The answer is D.

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Ответ:

miajustina123

26.11.2021

Mathematics

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Let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated operation, then find the domain. (f-g)(x)
a. x^2-4; domain: positive real numbers
b. 2x^2-4; domain: all real numbers
c. x^2-4; domain: all real numbers
d. 2x^2-2; domain: all real numbers

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