Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3/(x-5)+8/x=2
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Equation 0,144:(3,4-x)=2,4
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Equation (-2x+1)*(-2x-7)=0
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Equation 1/x^2-1/x-6=0
- Express {x} in terms of y where:
- -5*x-2*y=9
- 8*x-19*y=16
- 3*x-12*y=3
- 19*x+6*y=8
- Derivative of:
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lgx
- Graphing y =:
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lgx
- Integral of d{x}:
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lgx
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Identical expressions
- lgx=(x- one)* five
- lgx equally (x minus 1) multiply by 5
- lgx equally (x minus one) multiply by five
- lgx=(x-1)5
- lgx=x-15
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Similar expressions
- lgx=(x+1)*5
- (-(20*x^3)-(1300*x^2)-(1000*x)-150)/((0,85x^5+0,2x^4+40x^3+20x^2+4x+10))=x
- 1/(lg(x)+3)+2/(3-lg(x))=1
- x-1506=910
- (4x^2-9)^2+(2x^2+7x-15)^2=0
- lg(x-1)+lg(x-1)=0
- 116962,1374*x-15799,9229=-406,8832*x^3+1522,1581*x^2-3397,7295*x+5949,6816
lgx=(x-1)*5 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Sum and product of roots
[src]
sum
/ -5\
W\-5*e /
1 - ---------
5
$$1 - \frac{W\left(- \frac{5}{e^{5}}\right)}{5}$$
=
/ -5\
W\-5*e /
1 - ---------
5
$$1 - \frac{W\left(- \frac{5}{e^{5}}\right)}{5}$$
product
/ -5\
-W\-5*e /
-----------
5
$$- \frac{W\left(- \frac{5}{e^{5}}\right)}{5}$$
=
/ -5\
-W\-5*e /
-----------
5
$$- \frac{W\left(- \frac{5}{e^{5}}\right)}{5}$$
-LambertW(-5*exp(-5))/5
Rapid solution
[src]
x1 = 1
$$x_{1} = 1$$
/ -5\
-W\-5*e /
x2 = -----------
5
$$x_{2} = - \frac{W\left(- \frac{5}{e^{5}}\right)}{5}$$
x2 = -LambertW(-5*exp(-5))/5