Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^4-3x^2-4=0
-
Equation 2^x=8
- Equation x^2-49=0
-
Equation x^3=64
- Express {x} in terms of y where:
- 18*x+19*y=7
- 11*x-11*y=-17
- -2*x-4*y=11
- 14*x-3*y=-9
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Identical expressions
- thirteen - four (5x+ two)= three
- 13 minus 4(5x plus 2) equally 3
- thirteen minus four (5x plus two) equally three
- 13-45x+2=3
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Similar expressions
- 13+4(5x+2)=3
- 13-4(5x-2)=3
13-4(5x+2)=3 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 20 x = -2$$
Divide both parts of the equation by -20
We get the answer: x = 1/10
13-4*(5*x+2) = 3
Expand brackets in the left part
13-4*5*x-4*2 = 3
Looking for similar summands in the left part:
5 - 20*x = 3
Move free summands (without x)
from left part to right part, we given:
$$- 20 x = -2$$
Divide both parts of the equation by -20
x = -2 / (-20)
We get the answer: x = 1/10
Sum and product of roots
[src]
sum
1/10
$$\frac{1}{10}$$
=
1/10
$$\frac{1}{10}$$
product
1/10
$$\frac{1}{10}$$
=
1/10
$$\frac{1}{10}$$
1/10
The graph