Math, asked by Ksg2, 2 months ago

Givan that f(x)=x+5x+7,then f(4) is

Answers

Answered by abhiothee95
0

Answer:

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Answered by harry366784
1

Step-by-step explanation:

f(x)=x

2

−5x+1

f(2)=2

2

−5×2+1

=4−10+1

=−6+1

=−5

f(−1)=(−1)

2

−5×−1+1

=1+5+1

=7

f(

3

1

)=

3

1

2

−5×

3

1

+1

=

9

1

3

5

+1

=

9

1

9

15

+

9

9

=

9

10−15

=

9

−5

f(2)−f(−1)+f(

3

1

)=−5−7−

9

5

=−12−

9

5

=

9

−108−5

=−

9

113

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