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Mathematics 18 Online
OpenStudy (casadie1004):

Can someone help me with real solutions please?

OpenStudy (dmezzullo):

Got a question, or naw?

OpenStudy (casadie1004):

0=5x^2+2x-12 can u do it in steps?

jhonyy9 (jhonyy9):

how many will be the discriminant ?

jhonyy9 (jhonyy9):

hope you know these categories of roots in function of discriminant - yes ?

jhonyy9 (jhonyy9):

when D < 0 D = 0 D > 0 - do you know ?

jhonyy9 (jhonyy9):

5x^2 +2x -12 = 0 D = b^2 -4ac = 2^2 -(4*5*(-12)) = ?

jhonyy9 (jhonyy9):

@Casadie1004 please collaborate

jhonyy9 (jhonyy9):

so than will get the discriminant greater than zero so this mean that the quadratic has two real different roots

jhonyy9 (jhonyy9):

and than the discriminant is equal zero so than the quadratic has two real but equal roots - and than the discriminant is less than zero so than the quadratic have not real roots

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