The Casio calculator fx 85de plus is a scientific calculator designed for students and professionals. It features a wide range of functions including trigonometry, statistics, and algebraic calculations. The calculator also has a natural textbook display, allowing users to input and view mathematical expressions as they appear in textbooks. It is a popular choice for those in need of a reliable and versatile calculator for various mathematical tasks. **

To calculate roots with the Casio fx 85de plus, you can use the square root function. Simply input the number you want to find the square root of, then press the square root key (√). The result will be displayed on the screen. If you want to find higher roots, you can use the x√y function by inputting the number you want to find the root of, pressing the x√y key, then entering the root you want to find. **

To calculate zeros with the Casio fx 85de plus, you can use the equation solver function. First, input the equation you want to find the zeros for. Then, press the "MODE" button and select "EQN" mode. Next, press the "ALPHA" button followed by the "CALC" button to access the equation solver. Finally, input the variable you want to solve for and press the "=" button to calculate the zeros of the equation. **

To calculate powers on the Casio fx-85DE Plus calculator, you would first enter the base number. Then, press the "x^y" button, which is located on the bottom row of the calculator and looks like "x^y". After pressing this button, you would then enter the exponent or power to which you want to raise the base number. Finally, press the "=" button to calculate the result. This will display the answer to the power calculation on the calculator's screen. **

To solve a third degree equation using the Casio fx 85de plus, you can use the equation mode. First, press the MODE button and select the EQUA option. Then, input the coefficients of the third degree equation into the calculator using the appropriate variables. Once the coefficients are entered, press the CALC button to solve for the roots of the equation. The calculator will then display the solutions for the third degree equation. **

To get the result of the Casio fx 85DE Plus as a decimal number, you can simply press the "SD" button after obtaining the result. This will convert the result from fraction or radical form to decimal form. If the result is already in decimal form, pressing the "SD" button will not change the display. **

Yes, the Casio fx 85DE X is suitable for the intermediate level. It offers a wide range of functions and features that are useful for intermediate-level mathematics and science courses. Its ability to handle complex calculations, solve equations, and perform statistical analysis makes it a valuable tool for students at this level. Additionally, its user-friendly interface and clear display make it easy to use and understand, which is important for students who are still developing their mathematical skills. **

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