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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 （350-10(x-25)）x = 8960 .
Question type: Equation
Solution:Original question:
| ( | 350 | − | 10 | ( | x | − | 25 | ) | ) | x | = | 8960 |
| Left side of the equation = | 350 | x | − | 10 | ( | x | − | 25 | ) | x |
| = | 350 | x | − | 10 | x | x | + | 10 | × | 25 | x |
| = | 350 | x | − | 10 | x | x | + | 250 | x |
| = | 600 | x | − | 10 | x | x |
| 600 | x | − | 10 | x | x | = | 8960 |
After the equation is converted into a general formula, it is converted into:
( x - 28 )( x - 32 )=0
From
x - 28 = 0
x - 32 = 0
it is concluded that:：
x1=28
x2=32
There are 2 solution(s).
解一元二次方程的详细方法请参阅：《一元二次方程的解法》