Let f ( x ) = 1 x + 15 f − 1 ( x ) = ___
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Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a