Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation a*x=b
-
Equation x^2-x+8=0
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Equation 2^x=7
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Equation 3x^2-2x=0
- Express {x} in terms of y where:
- 2*x+19*y=-7
- -4*x+7*y=-16
- -16*x+3*y=17
- 12*x-20*y=9
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Identical expressions
- lg(x- one)+lg(x+ one)= zero
- lg(x minus 1) plus lg(x plus 1) equally 0
- lg(x minus one) plus lg(x plus one) equally zero
- lgx-1+lgx+1=0
- lg(x-1)+lg(x+1)=O
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Similar expressions
- lg(x-1)-lg(x+1)=0
- lg(x-1)+lg(x-1)=0
- lg(x+1)+lg(x+1)=0
lg(x-1)+lg(x+1)=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
log(x - 1) + log(x + 1) = 0
$$\log{\left(x - 1 \right)} + \log{\left(x + 1 \right)} = 0$$
Sum and product of roots
[src]
sum
___ \/ 2
$$\sqrt{2}$$
=
___ \/ 2
$$\sqrt{2}$$
product
___ \/ 2
$$\sqrt{2}$$
=
___ \/ 2
$$\sqrt{2}$$
sqrt(2)