Math, asked by aethanmagoarce13, 1 year ago

if x=x+1, then f(x)=9x²+2x+10 evaluate the equation

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Answered by tushar1224
1

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Answered by TheLostMonk
1
given x = x + 1

f(x) = 9x^2 + 2x + 10

so now ,

f(x +1 ) = 9( x+ 1 )^2 + 2 ( x +1 ) + 10

f ( x + 1 ) = 9 ( x^2 + 1 + 2x ) + 2x + 2 + 10

f (x + 1 ) = 9x^2 + 9 + 18x + 2x + 12

f(x + 1 ) = 9x^2 + 20x + 21

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