Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation log3(x2–3x–5)=log3(7–2x)
-
Equation ctg3x=-√3/3
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Equation y•(300:100)=720:9
- Equation 18x-35+5*x^2=0
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- 5*x-5*y=20
- 8*x-7*y=-13
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Identical expressions
- log3(x2–3x– five)=log3(seven –2x)
- logarithm of 3(x2–3x–5) equally logarithm of 3(7–2x)
- logarithm of 3(x2–3x– five) equally logarithm of 3(seven –2x)
- log3x2–3x–5=log37–2x
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What you mean?
- log(x^2 - 3*x - 1*5)/log(3) = log(7 - 2*x)/log(3)
You entered:
log3(x2–3x–5)=log3(7–2x)
What you mean?
log3(x2–3x–5)=log3(7–2x) equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
log(x2 - 3*x - 5) log(7 - 2*x)
----------------- = ------------
log(3) log(3)
$$\frac{\log{\left(- 3 x + x_{2} - 5 \right)}}{\log{\left(3 \right)}} = \frac{\log{\left(7 - 2 x \right)}}{\log{\left(3 \right)}}$$
The graph
Sum and product of roots
[src]
sum
0 + -12 + x2
$$\left(x_{2} - 12\right) + 0$$
=
-12 + x2
$$x_{2} - 12$$
product
1*(-12 + x2)
$$1 \left(x_{2} - 12\right)$$
=
-12 + x2
$$x_{2} - 12$$
-12 + x2