Mister Exam
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How to use it?
- Equation:
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Equation x^3+4*x^2-x-4=0
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Equation cos(x)=-1
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Equation 7+x=4
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Equation sin(x)=-1
- Express {x} in terms of y where:
- -19*x+1*y=0
- -12*x-3*y=-9
- 18*x-20*y=-7
- 18*x-12*y=-20
- Graphing y =:
- 7+x
- Limit of the function:
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7+x
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Identical expressions
- seven +x= four
- 7 plus x equally 4
- seven plus x equally four
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Similar expressions
- 7-x=4
- -60+20*cos(30)*2*0.2-30*sin(30)*4*0.2-3*0.2*(-72.727)+x=0
7+x=4 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$x = -3$$
We get the answer: x = -3
7+x = 4
Move free summands (without x)
from left part to right part, we given:
$$x = -3$$
We get the answer: x = -3
Sum and product of roots
[src]
sum
0 - 3
$$-3 + 0$$
=
-3
$$-3$$
product
1*-3
$$1 \left(-3\right)$$
=
-3
$$-3$$
-3
The graph