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OpenStudy (anonymous):
Given the quadratic function f(x) = 25x2 – 100x + 100, find a value of x such that f(x) = 25.
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OpenStudy (saifoo.khan):
25 = 25x2 – 100x + 100 Solve.
OpenStudy (anonymous):
25-100 =25x2-100x 25x2-100x+75 =0 divide with 25 x2-4x+3=0 (x-1)(x-3)=0 x=1, x=3
OpenStudy (anonymous):
thankyou
OpenStudy (anonymous):
nice to do
OpenStudy (anonymous):
=)
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OpenStudy (anonymous):
agree with saif
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