Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation -3x^2-5x-6=-x^2-x+(-1-2x^2)
- Equation x^5-32=0
-
Equation (x-2)^2+(x-8)^2=2x^2
-
Equation 2x^2-9x+15=0
- Express {x} in terms of y where:
- -10*x-16*y=-6
- 16*x+7*y=8
- -11*x+4*y=-8
- 17*x-11*y=2
-
Identical expressions
- -3x^ two -5x- six =-x^ two -x+(- one - two x^2)
- minus 3x squared minus 5x minus 6 equally minus x squared minus x plus ( minus 1 minus 2x squared )
- minus 3x to the power of two minus 5x minus six equally minus x to the power of two minus x plus ( minus one minus two x squared )
- -3x2-5x-6=-x2-x+(-1-2x2)
- -3x2-5x-6=-x2-x+-1-2x2
- -3x²-5x-6=-x²-x+(-1-2x²)
- -3x to the power of 2-5x-6=-x to the power of 2-x+(-1-2x to the power of 2)
- -3x^2-5x-6=-x^2-x+-1-2x^2
-
Similar expressions
- 3x^2-5x-6=-x^2-x+(-1-2x^2)
- -3x^2-5x+6=-x^2-x+(-1-2x^2)
- -3x^2-5x-6=-x^2-x-(-1-2x^2)
- -3x^2-5x-6=-x^2-x+(-1+2x^2)
- -3x^2+5x-6=-x^2-x+(-1-2x^2)
- -3x^2-5x-6=+x^2-x+(-1-2x^2)
- -3x^2-5x-6=-x^2-x+(1-2x^2)
- -3x^2-5x-6=-x^2+x+(-1-2x^2)
-3x^2-5x-6=-x^2-x+(-1-2x^2) equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
2 2 2 - 3*x - 5*x - 6 = - x - x - 1 - 2*x
$$- 3 x^{2} - 5 x - 6 = - 2 x^{2} - x^{2} - x - 1$$
Detail solution
Given the linear equation:
Expand brackets in the right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$- 3 x^{2} - 5 x = - 3 x^{2} - x + 5$$
Move the summands with the unknown x
from the right part to the left part:
$$- 3 x^{2} - 4 x = - 3 x^{2} + 5$$
Divide both parts of the equation by (-4*x - 3*x^2)/x
We get the answer: x = -5/4
-3*x^2-5*x-6 = -x^2-x+(-1-2*x^2)
Expand brackets in the right part
-3*x^2-5*x-6 = -x^2-x+-1-2*x+2
Looking for similar summands in the right part:
-6 - 5*x - 3*x^2 = -1 - x - 3*x^2
Move free summands (without x)
from left part to right part, we given:
$$- 3 x^{2} - 5 x = - 3 x^{2} - x + 5$$
Move the summands with the unknown x
from the right part to the left part:
$$- 3 x^{2} - 4 x = - 3 x^{2} + 5$$
Divide both parts of the equation by (-4*x - 3*x^2)/x
x = 5 - 3*x^2 / ((-4*x - 3*x^2)/x)
We get the answer: x = -5/4
Sum and product of roots
[src]
sum
-5/4
$$\left(- \frac{5}{4}\right)$$
=
-5/4
$$- \frac{5}{4}$$
product
-5/4
$$\left(- \frac{5}{4}\right)$$
=
-5/4
$$- \frac{5}{4}$$
The graph