Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+4*x+4=0
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Equation (x^2-4)^2+(x^2-3x-10)^2=0
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Equation -x/3+x+7=3
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Equation -20*(x-13)=-220
- Express {x} in terms of y where:
- -14*x+4*y=-16
- -13*x-10*y=5
- 9*x-1*y=17
- -12*x-8*y=13
- Sum of series:
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13
- Canonical form:
- 13
- Derivative of:
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13
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Identical expressions
- 4x+ two (one -3x)= thirteen
- 4x plus 2(1 minus 3x) equally 13
- 4x plus two (one minus 3x) equally thirteen
- 4x+21-3x=13
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Similar expressions
- 4x+2(1+3x)=13
- 4x-2(1-3x)=13
- 4x+2*(1-3x)=13
4x+2(1-3x)=13 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 11$$
Divide both parts of the equation by -2
We get the answer: x = -11/2
4*x+2*(1-3*x) = 13
Expand brackets in the left part
4*x+2*1-2*3*x = 13
Looking for similar summands in the left part:
2 - 2*x = 13
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 11$$
Divide both parts of the equation by -2
x = 11 / (-2)
We get the answer: x = -11/2
Sum and product of roots
[src]
sum
-11/2
$$- \frac{11}{2}$$
=
-11/2
$$- \frac{11}{2}$$
product
-11/2
$$- \frac{11}{2}$$
=
-11/2
$$- \frac{11}{2}$$
-11/2
The graph