Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-8=0
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Equation 16*x^2/5-5=0
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Equation x^2+14*x+40=0
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Equation x^2-18=7x
- Express {x} in terms of y where:
- 12*x+2*y=-9
- 2*x+6*y=-2
- -19*x-16*y=3
- -18*x+10*y=12
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Identical expressions
- x* eight = twenty-five - fifteen
- x multiply by 8 equally 25 minus 15
- x multiply by eight equally twenty minus five minus fifteen
- x8=25-15
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Similar expressions
- x*8=25+15
- ((25x^3)^7*(5x^3)^7)/(125x^8)^2=-160
- x^8-1=0
- log(7x^4-(x^4-9)^(1/2)+x^2+8)=log(x^8-(x^4-9)^(1/2)+x^2-10)
x*8=25-15 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the right part:
Divide both parts of the equation by 8
We get the answer: x = 5/4
x*8 = 25-15
Looking for similar summands in the right part:
8*x = 10
Divide both parts of the equation by 8
x = 10 / (8)
We get the answer: x = 5/4
Sum and product of roots
[src]
sum
5/4
$$\frac{5}{4}$$
=
5/4
$$\frac{5}{4}$$
product
5/4
$$\frac{5}{4}$$
=
5/4
$$\frac{5}{4}$$
5/4
The graph