Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-8=0
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Equation 8x-15=-12+5x
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Equation 5*(x+9)=-8
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Equation 7(x-1)=3x
- Express {x} in terms of y where:
- -2*x-7*y=3
- -15*x-15*y=12
- 10*x-13*y=16
- 12*x+1*y=11
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Identical expressions
- nine = five (x+ nine)
- 9 equally 5(x plus 9)
- nine equally five (x plus nine)
- 9=5x+9
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Similar expressions
- 9=5(x-9)
- 5*(x+9)=-8
- 2*x^2+65*x+9000=0
- x^2-5*x+9=x-6
- -5x+9=14
9=5(x+9) equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$0 = 5 x + 36$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = 36$$
Divide both parts of the equation by -5
We get the answer: x = -36/5
9 = 5*(x+9)
Expand brackets in the right part
9 = 5*x+5*9
Move free summands (without x)
from left part to right part, we given:
$$0 = 5 x + 36$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = 36$$
Divide both parts of the equation by -5
x = 36 / (-5)
We get the answer: x = -36/5
Sum and product of roots
[src]
sum
-36/5
$$- \frac{36}{5}$$
=
-36/5
$$- \frac{36}{5}$$
product
-36/5
$$- \frac{36}{5}$$
=
-36/5
$$- \frac{36}{5}$$
-36/5
The graph