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Mathematics 7 Online
OpenStudy (anonymous):

-x^4+5x^2+2x+7= f(x) whats the y and x intercept

OpenStudy (cwrw238):

plug in x = 0 and work it out to find the y-intercept

OpenStudy (anonymous):

so I got 7 as the y inter, how do I find x? \

OpenStudy (cwrw238):

right 7 is correct

OpenStudy (cwrw238):

i think best way to find the x intercept is to draw a graph as i don't think we can factor this function have you got a graphical calculator?

OpenStudy (cwrw238):

or you can use wolfram alpha

OpenStudy (anonymous):

I think the x is 5+sqrt(61) over 2 and 5-sqrt(61) over 2 because on the grphing cal its 8.905....

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