Các giai đoạn phát triển của logistics la

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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?

Anyone know these questions? i need ,.