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OpenStudy (anonymous):
Given the quadratic function f(x) = x² – 12x + 36, find a value of x such that f(x) = 9.
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OpenStudy (helder_edwin):
it is just a quadratic equation \[ \large 9=f(x)=x^2-12x+36 \]
OpenStudy (anonymous):
is 9 the value of x?
OpenStudy (helder_edwin):
solve the equation. u didn't even try!
OpenStudy (anonymous):
x=9, x=3
OpenStudy (anonymous):
x^2-12x+36=9 x^2-12x+27=0 (x-9)(x-3)=0 x=9, x=3
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OpenStudy (helder_edwin):
yes well done.
OpenStudy (anonymous):
thank you
OpenStudy (helder_edwin):
u r welcome
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