Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2=12
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Equation 12-x^2=11
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Equation -sin(x)=0
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Equation 4x+5=2x-7
- Express {x} in terms of y where:
- -5*x-6*y=-1
- -17*x-15*y=-17
- -2*x+7*y=-14
- -11*x-1*y=15
- The double integral of:
- -11
- -11
- Limit of the function:
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-11
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Identical expressions
- four *x- three *(four *x+ five)=- eleven
- 4 multiply by x minus 3 multiply by (4 multiply by x plus 5) equally minus 11
- four multiply by x minus three multiply by (four multiply by x plus five) equally minus eleven
- 4x-3(4x+5)=-11
- 4x-34x+5=-11
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Similar expressions
- 4*x-3*(4*x-5)=-11
- 4*x+3*(4*x+5)=-11
- (5/8)*(-2x+3)=(x-1*1/2)*(2/3)
- 4*x-3*(4*x+5)=+11
- 4x-3(4x+5)=-11
4*x-3*(4*x+5)=-11 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:
$$- 8 x = 4$$
Divide both parts of the equation by -8
We get the answer: x = -1/2
4*x-3*(4*x+5) = -11
Expand brackets in the left part
4*x-3*4*x-3*5 = -11
Looking for similar summands in the left part:
-15 - 8*x = -11
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = 4$$
Divide both parts of the equation by -8
x = 4 / (-8)
We get the answer: x = -1/2
Sum and product of roots
[src]
sum
-1/2
$$- \frac{1}{2}$$
=
-1/2
$$- \frac{1}{2}$$
product
-1/2
$$- \frac{1}{2}$$
=
-1/2
$$- \frac{1}{2}$$
-1/2