Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation 3*x^2-x-5=0
-
Equation cos(x)=-3
-
Equation x²-6x+5=0
-
Equation (5+7*a)*15=-30
- Express {x} in terms of y where:
- -2*x+15*y=9
- -15*x-19*y=-2
- -5*x+15*y=6
- -17*x+7*y=-11
-
Identical expressions
- 7x-(2x+ three)= zero
- 7x minus (2x plus 3) equally 0
- 7x minus (2x plus three) equally zero
- 7x-2x+3=0
- 7x-(2x+3)=O
-
Similar expressions
- 7x+(2x+3)=0
- 7x-(2x-3)=0
7x-(2x+3)=0 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:
$$5 x = 3$$
Divide both parts of the equation by 5
We get the answer: x = 3/5
7*x-(2*x+3) = 0
Expand brackets in the left part
7*x-2*x-3 = 0
Looking for similar summands in the left part:
-3 + 5*x = 0
Move free summands (without x)
from left part to right part, we given:
$$5 x = 3$$
Divide both parts of the equation by 5
x = 3 / (5)
We get the answer: x = 3/5
Sum and product of roots
[src]
sum
3/5
$$\frac{3}{5}$$
=
3/5
$$\frac{3}{5}$$
product
3/5
$$\frac{3}{5}$$
=
3/5
$$\frac{3}{5}$$
3/5
The graph