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Mathematics 11 Online
OpenStudy (anonymous):

Where does the graph of y=2x^2-8x-5 cross the x-axis?? PLEASE HELP<3

OpenStudy (anonymous):

The answer choices: 4.55,0 and -.55,0 4.23,0 and -.46,0 4.32,0 and -.49,0 4.48,0 and -.51,0

OpenStudy (amistre64):

you should prolly apply the quadratic formula

OpenStudy (amistre64):

completing the square is a longer method ... but just as effective

OpenStudy (amistre64):

another idea is to find the axis of the vertex, and it will be the midpoint between the intercepts

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