how to solve this problem by step by step
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(i) f(x)=5x²-3x+7
at x=1, f(1)=5(1)²-3(1)+7
=5-3+7
=12-3
. =9
(ii)f(y)=3y³-4y+11
at x=2,
f(2)=3(2)²-4(2)+11
=3×4-8+11
=12-8+11
=21-8
=13
f(a)=4a⁴+
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