On line Solution of Monovariate Equation:
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Overview: 1 questions will be solved this time.Among them ☆1 equations
[ 1/1 Equation] Work: Find the solution of equation (30-x)(80+4x) = 0 . Question type: Equation Solution:Original question:
(
30
−
x
)
(
80
+
4
x
)
=
0
Remove the bracket on the left of the equation:
Left side of the equation =
30
(
80
+
4
x
)
−
x
(
80
+
4
x
)
=
30
×
80
+
30
×
4
x
−
x
(
80
+
4
x
)
=
2400
+
120
x
−
x
(
80
+
4
x
)
=
2400
+
120
x
−
x
×
80
−
x
×
4
x
=
2400
+
40
x
−
x
×
4
x
The equation is transformed into :
2400
+
40
x
−
x
×
4
x
=
0
After the equation is converted into a general formula, it is converted into: ( x + 20 )( x - 30 )=0 From x + 20 = 0 x - 30 = 0 it is concluded that:: x1=-20 x2=30 There are 2 solution(s).