Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -x^2+6*x-7=0
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Equation -x^3+4*x^2+4*x-16=0
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Equation x/7=6
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Equation 2x-cosx=0
- Express {x} in terms of y where:
- 13*x-12*y=10
- -12*x-19*y=16
- 4*x-7*y=11
- 18*x-11*y=13
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Identical expressions
- X* zero , five =- thirty-three / four
- X multiply by 0,5 equally minus 33 divide by 4
- X multiply by zero , five equally minus thirty minus three divide by four
- X0,5=-33/4
- X*0,5=-33 divide by 4
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Similar expressions
- X*0,5=+33/4
- (0.75*(-33)/(100-33x)^0.5)+(0.25*(-33)/(49-33x)^0.5)=0
X*0,5=-33/4 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
Divide both parts of the equation by 1/2
We get the answer: x = -33/2
x*(1/2) = -33/4
Expand brackets in the left part
x1/2 = -33/4
Divide both parts of the equation by 1/2
x = -33/4 / (1/2)
We get the answer: x = -33/2
Sum and product of roots
[src]
sum
-33/2
$$- \frac{33}{2}$$
=
-33/2
$$- \frac{33}{2}$$
product
-33/2
$$- \frac{33}{2}$$
=
-33/2
$$- \frac{33}{2}$$
-33/2