Question

22. If f (x) = 2x² + 3x +1 then find f(-1)
a 0
c) 5​

Answer 1

2x^2+3x+1

2×-1^2+3×-1+1

2×1-3+1

2-3+1

0

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Answer 2

Answer:

Given f(x+1)=2x

2

−3x+1 ……..(1)

Now, to find f(x+2) let us

put (x+1) in place of 'x' in (1)

or, f(x+2)=2(x+1)

2

−3(x+1)+1

=2(x

2

+2x+1)−3(x+1)+1

=(2x

2

+x).