Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+2x+1=0
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Equation cos(x/2)=1/2
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Equation sin(x)=1,5
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Equation e^x=4
- Express {x} in terms of y where:
- -8*x+10*y=19
- -5*x+3*y=10
- -18*x+19*y=2
- -17*x+10*y=6
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Identical expressions
- zero ,5x- two , four = thirty-one , eight
- 0,5x minus 2,4 equally 31,8
- zero ,5x minus two , four equally thirty minus one , eight
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Similar expressions
- 0,5x+2,4=31,8
- x×(x+4,3)(1,8x)=0
0,5x-2,4=31,8 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
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{2} = \frac{171}{5}$$
Divide both parts of the equation by 1/2
We get the answer: x = 342/5
(1/2)*x-(12/5) = (159/5)
Expand brackets in the left part
1/2x-12/5 = (159/5)
Expand brackets in the right part
1/2x-12/5 = 159/5
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{2} = \frac{171}{5}$$
Divide both parts of the equation by 1/2
x = 171/5 / (1/2)
We get the answer: x = 342/5
Sum and product of roots
[src]
sum
342/5
$$\frac{342}{5}$$
=
342/5
$$\frac{342}{5}$$
product
342/5
$$\frac{342}{5}$$
=
342/5
$$\frac{342}{5}$$
342/5