if f(n) =3x4 -5x2+9 find f(x-1)
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Step-by-step explanation:
f(x-1)=3(x-1)^4-5(x-1)^2+9
=3(x4+1-4x2+2x2-4x2-4x)-5(x2+1-2x)+9
=3x4+3-12x2+6x2-12x2-12x-5x2-5+10x+9
= 3x4+7-23x2-2x
=3x^4-23x^2-2x+7
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