MATHEMATICS HIGH SCHOOL

If given f(x) = x 4 and g(x) = –2x2 3x – 1, what is (f – g.(x)?
a. (f –
g.(x) = –2x2 4x – 3
b. (f –
g.(x) = –2x2 – 2x 5
c. (f –
g.(x) = 2x2 2x 5
d. (f –
g.(x) = 2x2 – 2x 5

Answers

Answer 1
Answer: f(x) = x + 4
g(x) = -2x^2 + 3x - 1
(f - g)(x) = f(x) - g(x) = x + 4 - (-2x^2 + 3x - 1) = x + 4 + 2x^2 - 3x + 1 = 2x^2 - 2x + 5
Answer 2
Answer:

Answer:

2x^2-2x+5

Step-by-step explanation:

Given,

f(x)=x+4

g(x)=-2x^2+3x-1

(f-g)(x)=f(x)-g(x)        ( Subtraction of two functions )

=(x+4)-(-2x^2+3x-1)  ( By substituting values )

=x+4+2x^2-3x+1      ( Distributive property )

=2x^2-2x+5             ( Combining like terms )

Hence,

(f-g)(x)=2x^2-2x+5        

Option d is correct.

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Answers

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Answer:

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Answers

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Answers

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Step-by-step explanation:

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