Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation 64-x^2=0
- Equation (x^2+a)/x+x/(x^2+a)=-5/2
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Equation -x=-14
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Equation (2*x+3)/(x+2)=(3*x+2)/x
- Express {x} in terms of y where:
- -8*x-2*y=-11
- -12*x-19*y=-8
- -14*x-7*y=-10
- -20*x-12*y=-17
- Sum of series:
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4,2
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Identical expressions
- three , five -(x+ two)= four , two
- 3,5 minus (x plus 2) equally 4,2
- three , five minus (x plus two) equally four , two
- 3,5-x+2=4,2
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Similar expressions
- 3,5+(x+2)=4,2
- 3,5-(x-2)=4,2
3,5-(x+2)=4,2 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
Expand brackets in the right part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- x = \frac{27}{10}$$
Divide both parts of the equation by -1
We get the answer: x = -27/10
(7/2)-(x+2) = (21/5)
Expand brackets in the left part
7/2-x-2 = (21/5)
Expand brackets in the right part
7/2-x-2 = 21/5
Looking for similar summands in the left part:
3/2 - x = 21/5
Move free summands (without x)
from left part to right part, we given:
$$- x = \frac{27}{10}$$
Divide both parts of the equation by -1
x = 27/10 / (-1)
We get the answer: x = -27/10
Sum and product of roots
[src]
sum
-27 ---- 10
$$- \frac{27}{10}$$
=
-27 ---- 10
$$- \frac{27}{10}$$
product
-27 ---- 10
$$- \frac{27}{10}$$
=
-27 ---- 10
$$- \frac{27}{10}$$
-27/10