Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x+3)^2=4
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Equation 9*(x-1)=x+15
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Equation x*x-x+7=0
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Equation 5*sqrt(x-3)=-2
- Express {x} in terms of y where:
- -1*x+11*y=-9
- 1*x+18*y=-5
- 5*x+20*y=-4
- -11*x+9*y=8
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Identical expressions
- sqrt(five)-x= two
- square root of (5) minus x equally 2
- square root of (five) minus x equally two
- √(5)-x=2
- sqrt5-x=2
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Similar expressions
- sqrt(5-x)+sqrt(x-8)=2
- sqrt(5)+x=2
- sqrtx+5-sqrt5-x=sqrtx-1
- sqrt(3-x)*sqrt(5-x)=0
sqrt(5)-x=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
Divide both parts of the equation by (sqrt(5) - x)/x
We get the answer: x = -2 + sqrt(5)
sqrt(5)-x = 2
Expand brackets in the left part
sqrt5-x = 2
Divide both parts of the equation by (sqrt(5) - x)/x
x = 2 / ((sqrt(5) - x)/x)
We get the answer: x = -2 + sqrt(5)
Sum and product of roots
[src]
sum
___ -2 + \/ 5
$$-2 + \sqrt{5}$$
=
___ -2 + \/ 5
$$-2 + \sqrt{5}$$
product
___ -2 + \/ 5
$$-2 + \sqrt{5}$$
=
___ -2 + \/ 5
$$-2 + \sqrt{5}$$
-2 + sqrt(5)