Mister Exam
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How to use it?
- Equation:
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Equation 17x+2x^2+21=0
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Equation 19x-11x=72,16
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Equation 163+(87-n)=303
- Equation 4*x^3-19*x^2+19*x+6=0
- Express {x} in terms of y where:
- 5*x-5*y=20
- 8*x-7*y=-13
- 9*x+18*y=6
- 15*x-15*y=16
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Identical expressions
- 19x-11x= seventy-two , sixteen
- 19x minus 11x equally 72,16
- 19x minus 11x equally seventy minus two , sixteen
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Similar expressions
- 19x+11x=72,16
19x-11x=72,16 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
Looking for similar summands in the left part:
Divide both parts of the equation by 8
We get the answer: x = 451/50
19*x-11*x = (1804/25)
Expand brackets in the right part
19*x-11*x = 1804/25
Looking for similar summands in the left part:
8*x = 1804/25
Divide both parts of the equation by 8
x = 1804/25 / (8)
We get the answer: x = 451/50
Sum and product of roots
[src]
sum
451
0 + ---
50
$$0 + \frac{451}{50}$$
=
451 --- 50
$$\frac{451}{50}$$
product
451 1*--- 50
$$1 \cdot \frac{451}{50}$$
=
451 --- 50
$$\frac{451}{50}$$
451/50
The graph