Mister Exam
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How to use it?
- Equation:
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Equation x/4+13=x+1
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Equation 2x^2-x-1=x^2-5x-(-1-x^2)
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Equation x^3-x^2-x-1=0
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Equation -x=3
- Express {x} in terms of y where:
- 10*x-2*y=11
- -18*x-14*y=12
- 4*x+8*y=7
- -14*x+5*y=3
-
Identical expressions
- - two *x- three *x+ twenty-seven = zero
- minus 2 multiply by x minus 3 multiply by x plus 27 equally 0
- minus two multiply by x minus three multiply by x plus twenty minus seven equally zero
- -2x-3x+27=0
- -2*x-3*x+27=O
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Similar expressions
- 2*x-3*x+27=0
- -2*x+3*x+27=0
- -2*x-3*x-27=0
-2*x-3*x+27=0 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 left part:
Move free summands (without x)
from left part to right part, we given:
$$- 5 x = -27$$
Divide both parts of the equation by -5
We get the answer: x = 27/5
-2*x-3*x+27 = 0
Looking for similar summands in the left part:
27 - 5*x = 0
Move free summands (without x)
from left part to right part, we given:
$$- 5 x = -27$$
Divide both parts of the equation by -5
x = -27 / (-5)
We get the answer: x = 27/5
Sum and product of roots
[src]
sum
27/5
$$\frac{27}{5}$$
=
27/5
$$\frac{27}{5}$$
product
27/5
$$\frac{27}{5}$$
=
27/5
$$\frac{27}{5}$$
27/5
The graph