Mister Exam
Other calculators
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How to use it?
- Equation:
-
Equation x^3-7x+6=0
-
Equation 2x^2-x+3=0
-
Equation 3x^2+1=0
-
Equation 2x^2-5x=0
- Express {x} in terms of y where:
- 15*x+10*y=-3
- 9*x-5*y=6
- 18*x-19*y=15
- -5*x+15*y=6
-
Identical expressions
- - three (x- five)- two (x+ six)= one
- minus 3(x minus 5) minus 2(x plus 6) equally 1
- minus three (x minus five) minus two (x plus six) equally one
- -3x-5-2x+6=1
-
Similar expressions
- 3(x-5)-2(x+6)=1
- -3(x-5)-2(x-6)=1
- -3(x-5)+2(x+6)=1
- -3(x+5)-2(x+6)=1
-3(x-5)-2(x+6)=1 equation
The teacher will be very surprised to see your correct solution 😉
The solution
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[src]
-3*(x - 5) - 2*(x + 6) = 1
$$- 3 \left(x - 5\right) - 2 \left(x + 6\right) = 1$$
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:
$$- 5 x = -2$$
Divide both parts of the equation by -5
We get the answer: x = 2/5
-3*(x-5)-2*(x+6) = 1
Expand brackets in the left part
-3*x+3*5-2*x-2*6 = 1
Looking for similar summands in the left part:
3 - 5*x = 1
Move free summands (without x)
from left part to right part, we given:
$$- 5 x = -2$$
Divide both parts of the equation by -5
x = -2 / (-5)
We get the answer: x = 2/5
Sum and product of roots
[src]
sum
2/5
$$\frac{2}{5}$$
=
2/5
$$\frac{2}{5}$$
product
2/5
$$\frac{2}{5}$$
=
2/5
$$\frac{2}{5}$$
2/5