Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+2*x+10=0
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Equation 2^4-2*x=64
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Equation x^2+3*x+9=0
- Equation x^2-x+30=0
- Express {x} in terms of y where:
- -18*x-3*y=2
- 5*x+20*y=-4
- 20*x-8*y=13
- -16*x+18*y=9
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Identical expressions
- three *x/ three =(one -x)/ two
- 3 multiply by x divide by 3 equally (1 minus x) divide by 2
- three multiply by x divide by three equally (one minus x) divide by two
- 3x/3=(1-x)/2
- 3x/3=1-x/2
- 3*x divide by 3=(1-x) divide by 2
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Similar expressions
- (2x-9)/(2x+5)+(3x)/(3x-2)=2
- 4+(1/3)^x=3^x/(3^x+18)
- 2^(x*(1-x/2))*(-1+(-1+x)^2*log(2))*log(2)=0
- x+x*((8-3x)/3)+((8-3x)/3)=10
- -((32/121)-(8*z/121))*((-x/2)+z)+((32/121)-(8*z/121))*((4*x/3)+(1/3))=0
- 3*(x/30+6/5)^3-9*(x/30+6/5)-x=0
- (3,1-x/2)*x/2=3,9
- 3*x/3=(1+x)/2
- 2x-1/3=x+5/8-1-x/2
3*x/3=(1-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 right part
Move the summands with the unknown x
from the right part to the left part:
$$\frac{3 x}{2} = \frac{1}{2}$$
Divide both parts of the equation by 3/2
We get the answer: x = 1/3
3*x/3 = (1-x)/2
Expand brackets in the right part
3*x/3 = 1/2-x/2
Move the summands with the unknown x
from the right part to the left part:
$$\frac{3 x}{2} = \frac{1}{2}$$
Divide both parts of the equation by 3/2
x = 1/2 / (3/2)
We get the answer: x = 1/3
Sum and product of roots
[src]
sum
1/3
$$\frac{1}{3}$$
=
1/3
$$\frac{1}{3}$$
product
1/3
$$\frac{1}{3}$$
=
1/3
$$\frac{1}{3}$$
1/3
The graph