Write a polynomial function with rational coefficients that has zeros - 4 and 5i. P(x) = x3 + x2 - 25x +
P(x) = 4x2 + 5
P(x) = 5x3 - 4x2 + 25x +
100
P(x) = x3 + 4x2 + 25x +
100
100

Which equation can be simplified to find the inverse of y = 2x2?

How to do this , and can some one explain

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)