Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -x^2-4*x-3=0
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Equation 3x+3=-2-7x
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Equation sin(-x)=0
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Equation (x+3)^3=81*(x+3)
- Express {x} in terms of y where:
- -14*x-18*y=2
- -10*x+1*y=9
- -2*x-1*y=18
- 2*x+4*y=-12
- Sum of series:
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-1
- Integral of d{x}:
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-1
- Derivative of:
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-1
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Identical expressions
- two ,5x=- one
- 2,5x equally minus 1
- two ,5x equally minus one
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Similar expressions
- 2,5x=+1
- (2,5*x-15)*y-x=4
- 2,5(x-3)-(0,5x+2)=1/2
2,5x=-1 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
Divide both parts of the equation by 5/2
We get the answer: x = -2/5
(5/2)*x = -1
Expand brackets in the left part
5/2x = -1
Divide both parts of the equation by 5/2
x = -1 / (5/2)
We get the answer: x = -2/5
Sum and product of roots
[src]
sum
-2/5
$$- \frac{2}{5}$$
=
-2/5
$$- \frac{2}{5}$$
product
-2/5
$$- \frac{2}{5}$$
=
-2/5
$$- \frac{2}{5}$$
-2/5
The graph