Question

Find f (-2) + f(1) if f(x) =x2+3x+1​

Answer 1

Answer:

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Answer 2

If f(x)=x

2

−3x+1 and f(2α)=2f(α), then find the value of α.

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Answer

f(x)=x

2

−3x+1

f(2α)=(2α)

2

−3(2α)+1=4α

2

−6α+1

f(2α)=2f(α)

∴4α

2

−6α+1=2(α

2

−3α+1)

4α

2

−6α+1=2α

2

−bα+2

4α

2

+1=2α

2

+2

2α

2

=1 α=±

2

1