Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-8=0
-
Equation x^4-x^2+1=0
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Equation 16*x^2/5-5=0
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Equation 10-5(2x-1)=7
- Express {x} in terms of y where:
- 12*x+2*y=-9
- 2*x+6*y=-2
- -19*x-16*y=3
- -18*x+10*y=12
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Identical expressions
- ten - five (2x- one)= seven
- 10 minus 5(2x minus 1) equally 7
- ten minus five (2x minus one) equally seven
- 10-52x-1=7
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Similar expressions
- 10+5(2x-1)=7
- 10-5(2x+1)=7
10-5(2x-1)=7 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:
$$- 10 x = -8$$
Divide both parts of the equation by -10
We get the answer: x = 4/5
10-5*(2*x-1) = 7
Expand brackets in the left part
10-5*2*x+5*1 = 7
Looking for similar summands in the left part:
15 - 10*x = 7
Move free summands (without x)
from left part to right part, we given:
$$- 10 x = -8$$
Divide both parts of the equation by -10
x = -8 / (-10)
We get the answer: x = 4/5
Sum and product of roots
[src]
sum
4/5
$$\frac{4}{5}$$
=
4/5
$$\frac{4}{5}$$
product
4/5
$$\frac{4}{5}$$
=
4/5
$$\frac{4}{5}$$
4/5
The graph