Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3*x^2-8*x-3=0
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Equation x^3=9
- Equation 4/3*x^2-48=0
-
Equation z^4+z^2+1=0
- Express {x} in terms of y where:
- 19*x-3*y=-12
- 14*x+14*y=13
- -10*x+5*y=10
- -18*x+16*y=4
- Sum of series:
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28
- 28
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Identical expressions
- x- five (x- two)= twenty-eight
- x minus 5(x minus 2) equally 28
- x minus five (x minus two) equally twenty minus eight
- x-5x-2=28
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Similar expressions
- (x+5)/(x-2)-5/(x-5)=(x-20)/((x-5)(x-2))
- x^2-16-4x-16=x^2-5x-5x-25
- x+5(x-2)=28
- x((x-5)(x-2))/((x^3-7x^2+(10x)))=0
- 17x-5x-2x=310
- x-5(x+2)=28
x-5(x-2)=28 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 18$$
Divide both parts of the equation by -4
We get the answer: x = -9/2
x-5*(x-2) = 28
Expand brackets in the left part
x-5*x+5*2 = 28
Looking for similar summands in the left part:
10 - 4*x = 28
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 18$$
Divide both parts of the equation by -4
x = 18 / (-4)
We get the answer: x = -9/2
Sum and product of roots
[src]
sum
-9/2
$$- \frac{9}{2}$$
=
-9/2
$$- \frac{9}{2}$$
product
-9/2
$$- \frac{9}{2}$$
=
-9/2
$$- \frac{9}{2}$$
-9/2
The graph