Overview: 4 questions will be solved this time.Among them
☆4 equations
[ 1/4 Equation]
Work: Find the solution of equation x²+3x+4 = 6 .
Question type: Equation
Solution:
The solution of the equation:
x1≈-3.561553 , keep 6 decimal places
x2≈0.561553 , keep 6 decimal places
There are 2 solution(s).
解程的详细方法请参阅:《方程的解法》[ 2/4 Equation]
Work: Find the solution of equation x²-5x-3 = 0 .
Question type: Equation
Solution:
The solution of the equation:
x1≈-0.541381 , keep 6 decimal places
x2≈5.541381 , keep 6 decimal places
There are 2 solution(s).
解程的详细方法请参阅:《方程的解法》[ 3/4 Equation]
Work: Find the solution of equation x²+6x = 7 .
Question type: Equation
Solution:
After the equation is converted into a general formula, it is converted into:
( x + 7 )( x - 1 )=0
From
x + 7 = 0
x - 1 = 0
it is concluded that::
x1=-7
x2=1
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》[ 4/4 Equation]
Work: Find the solution of equation x²+3x+3 = 2 .
Question type: Equation
Solution:
The solution of the equation:
x1≈-2.618034 , keep 6 decimal places
x2≈-0.381966 , keep 6 decimal places
There are 2 solution(s).
解程的详细方法请参阅:《方程的解法》Your problem has not been solved here? Please go to the Hot Problems section!