SOLUTION: 1)Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = -9x2 + 4x + 7
2)Select the approximate values of x that are solutions to f(x) = 0, where
f
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-> SOLUTION: 1)Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = -9x2 + 4x + 7
2)Select the approximate values of x that are solutions to f(x) = 0, where
f
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You can put this solution on YOUR website! 1)Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = -9x2 + 4x + 7
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-9x^2 + 4x + 7 = 0
Use the Quadratic formula to get:
x = [-4 +- sqrt(16-4*-9*7))/(2*-9)
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x = [-4 +- sqrt(268))/(-18)
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x = [-4 +- 2sqrt(67))/-18
----
x [-2 +- sqrt(67))(-9)
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2)Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = -2x2 + 3x + 9
-2x^2 + 3x + 9 = 0
-2x^2 -6x+3x + 9 = 0
-2x(x+3)+3(x+3) = 0
(x+3)(-2x+3) = 0
x = -3 or x = 3/2
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Cheers,
Stan H.
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