Asked by liza
Select the approximate values of x that are solutions to f(x)=0,where f(x)=-9x^2+7x+2
A.{-0.22,1.00}
B.{-9,7}
C.{-0.78,-0.22}
D.{-4.50,3,50}
A.{-0.22,1.00}
B.{-9,7}
C.{-0.78,-0.22}
D.{-4.50,3,50}
Answers
Answered by
Reiny
-9x^2 + 7x + 2 = 0
9x^2 - 7x - 2 = 0
x = (7 ± √121)/18
x = 1 or x = -2/9
9x^2 - 7x - 2 = 0
x = (7 ± √121)/18
x = 1 or x = -2/9
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