oreocharliechester oreocharliechester

11-08-2018
Mathematics

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plz help

For the function F defined by F(x)=x2−2x+4, find F(2b−1).

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GoddessofDork GoddessofDork

11-08-2018

So firstly, replace x with 2b-1: [tex] f(2b-1)=(2b-1)^2-2(2b-1)+4 [/tex]

Next, do the multiplications and the exponents: [tex] f(2b-1)=4b^2-4b+1-4b+2+4 [/tex]

Next, combine like terms and your answer will be: [tex] f(2b-1)=4b^2-8b+7 [/tex]

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