Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation (5x-2)*(8x-2) = 10 .
Question type: Equation
Solution:Original question: Remove the bracket on the left of the equation:
| Left side of the equation = | 5 | x | ( | 8 | x | − | 2 | ) | − | 2 | ( | 8 | x | − | 2 | ) |
| = | 5 | x | × | 8 | x | − | 5 | x | × | 2 | − | 2 | ( | 8 | x | − | 2 | ) |
| = | 40 | x | x | − | 10 | x | − | 2 | ( | 8 | x | − | 2 | ) |
| = | 40 | x | x | − | 10 | x | − | 2 | × | 8 | x | + | 2 | × | 2 |
| = | 40 | x | x | − | 10 | x | − | 16 | x | + | 4 |
The equation is transformed into :
The solution of the equation:
x1≈-0.180594 , keep 6 decimal places
x2≈0.830594 , keep 6 decimal places
There are 2 solution(s).
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