Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 0=-1-2x
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Equation ||x|-6|=4
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Equation z^2+6*z+5=0
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Equation -2x=0
- Express {x} in terms of y where:
- 5*x+4*y=9
- -9*x+8*y=-16
- -15*x+15*y=10
- 7*x-19*y=16
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Identical expressions
- ||x|- six |= four
- module of |x| minus 6| equally 4
- module of |x| minus six | equally four
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Similar expressions
- ||x|+6|=4
||x|-6|=4 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Rapid solution
[src]
x1 = -10
$$x_{1} = -10$$
x2 = -2
$$x_{2} = -2$$
x3 = 2
$$x_{3} = 2$$
x4 = 10
$$x_{4} = 10$$
x4 = 10
Sum and product of roots
[src]
sum
-10 - 2 + 2 + 10
$$\left(\left(-10 - 2\right) + 2\right) + 10$$
=
0
$$0$$
product
-10*(-2)*2*10
$$10 \cdot 2 \left(- -20\right)$$
=
400
$$400$$
400
The graph