Question

If f(x) = ax - bx2 + x + 5 and f(-3) = 2, then f(3) =
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Answer 1

8 is your required answer

Answer 2

Answer:

f(3) = 3a- 6b+8

f( -3) = -3a + 6b +2

f(-3) = 2

therefore comparing

2= -3a +6b +2

0 = -3a +6b

therefore 3a-6b= 0............(1)

putting value of 1 in f(3)

we get

f(3) = 0+8

=8

I hope you got it

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