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Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation X(X+3)(X-3) = 575 .
Question type: Equation
Solution:Original question:
| X | ( | X | + | 3 | ) | ( | X | − | 3 | ) | = | 575 |
| Left side of the equation = | X | X | ( | X | − | 3 | ) | + | X | × | 3 | ( | X | − | 3 | ) |
| = | X | X | X | − | X | X | × | 3 | + | X | × | 3 | ( | X | − | 3 | ) |
| = | X | X | X | − | X | X | × | 3 | + | X | × | 3 | X | − | X | × | 3 | × | 3 |
| = | X | X | X | − | X | X | × | 3 | + | X | × | 3 | X | − | X | × | 9 |
| X | X | X | − | X | X | × | 3 | + | X | × | 3 | X | − | 9 | X | = | 575 |
the solutions is:
X≈8.676072 , keep 6 decimal places
There are 1 solution(s).
解方程的详细方法请参阅：《方程的解法》