babygirlbb babygirlbb

07-06-2017
Mathematics

contestada

write the equation f(x)=3(x-7)^2+5 in standard form
A) f(x)=3x^2-42x+152
B) f(x)=3x^2-21x+5
C) f(x)=3x^2-42x-142

Respuesta :

apologiabiology apologiabiology

08-06-2017

standard form
expand first then add

f(x)=3(x-7)²+5
f(x)=3(x-7)(x-7)+5
f(x)=3(x²-14x+49)+5
f(x)=3x²-42x+147+5
f(x)=3x²-42x+152

A is answer

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