Mister Exam
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How to use it?
- Equation:
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Equation -7x=13-2(8x-7)
-
Equation 3^(log9(2x+8))=2
- Equation 14n^3-(-8n^3)+(3n^3-11n^3)
-
Equation cosx=3^0.5/2
- Express {x} in terms of y where:
- 16*x+14*y=-9
- -16*x-14*y=-9
- -10*x+18*y=6
- 1*x+5*y=-11
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Identical expressions
- three ^(log9(two x+ eight))=2
- 3 to the power of ( logarithm of 9(2x plus 8)) equally 2
- three to the power of ( logarithm of 9(two x plus eight)) equally 2
- 3(log9(2x+8))=2
- 3log92x+8=2
- 3^log92x+8=2
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Similar expressions
- 3^(log9(2x-8))=2
3^(log9(2x+8))=2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
log(2*x + 8)
------------
log(9)
3 = 2
$$3^{\frac{\log{\left(2 x + 8 \right)}}{\log{\left(9 \right)}}} = 2$$
Sum and product of roots
[src]
sum
-2
$$\left(-2\right)$$
=
-2
$$-2$$
product
-2
$$\left(-2\right)$$
=
-2
$$-2$$
Numerical answer
[src]
x1 = -2.0
x2 = -1.99999999999999 + 1.59784572024504e-14*i
x3 = -2.0 + 1.38401910113692e-18*i
x4 = -2.0 + 2.01875069045238e-16*i
x4 = -2.0 + 2.01875069045238e-16*i
The graph