Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^3=x^2+2x
- Equation x^3+6x^2-x-6=0
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Equation (x-1)*(x^2+8*x+16)=6*(x+4)
- Equation x^3+2*x^2-36*x-72=0
- Express {x} in terms of y where:
- 12*x+10*y=17
- 14*x+7*y=-4
- -15*x-16*y=12
- 16*x+9*y=-18
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Identical expressions
- 5b=- eighty-five , six -3b
- 5b equally minus 85,6 minus 3b
- 5b equally minus eighty minus five , six minus 3b
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Similar expressions
- 5b=-85,6+3b
- 5b=+85,6-3b
- 7*b+(18*a-5*b)=0
5b=-85,6-3b 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 b
from the right part to the left part:
$$8 b = - \frac{428}{5}$$
Divide both parts of the equation by 8
We get the answer: b = -107/10
5*b = -(428/5)-3*b
Expand brackets in the right part
5*b = -428/5-3*b
Move the summands with the unknown b
from the right part to the left part:
$$8 b = - \frac{428}{5}$$
Divide both parts of the equation by 8
b = -428/5 / (8)
We get the answer: b = -107/10
Sum and product of roots
[src]
sum
-107 ----- 10
$$- \frac{107}{10}$$
=
-107 ----- 10
$$- \frac{107}{10}$$
product
-107 ----- 10
$$- \frac{107}{10}$$
=
-107 ----- 10
$$- \frac{107}{10}$$
-107/10