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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 (y-6)(y-2) = 0 .
Question type: Equation
Solution:Original question:
| ( | y | − | 6 | ) | ( | y | − | 2 | ) | = | 0 |
| Left side of the equation = | y | ( | y | − | 2 | ) | − | 6 | ( | y | − | 2 | ) |
| = | y | y | − | y | × | 2 | − | 6 | ( | y | − | 2 | ) |
| = | y | y | − | 2 | y | − | 6 | y | + | 6 | × | 2 |
| = | y | y | − | 2 | y | − | 6 | y | + | 12 |
| = | y | y | − | 8 | y | + | 12 |
| y | y | − | 8 | y | + | 12 | = | 0 |
After the equation is converted into a general formula, it is converted into:
( y - 2 )( y - 6 )=0
From
y - 2 = 0
y - 6 = 0
it is concluded that:：
y1=2
y2=6
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》