Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x-4)^2+(x+9)^2=2*x^2
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Equation 9-2(-4x+7)=7
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Equation sin(x)+1/2=0
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Equation 4^x-12*2^x+32=0
- Express {x} in terms of y where:
- -11*x+4*y=-8
- -14*x+1*y=3
- 14*x+16*y=14
- 16*x+7*y=8
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Identical expressions
- nine - two (-4x+ seven)= seven
- 9 minus 2( minus 4x plus 7) equally 7
- nine minus two ( minus 4x plus seven) equally seven
- 9-2-4x+7=7
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Similar expressions
- 9+2(-4x+7)=7
- 9-2(-4x-7)=7
- 9-2*(-4*x+7)=7
- 9-2*(-4x+7)=7
- 9-2(4x+7)=7
9-2(-4x+7)=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
Move free summands (without x)
from left part to right part, we given:
$$8 x = 12$$
Divide both parts of the equation by 8
We get the answer: x = 3/2
9-2*(-4*x+7) = 7
Expand brackets in the left part
92*4*x-2*7 = 7
Move free summands (without x)
from left part to right part, we given:
$$8 x = 12$$
Divide both parts of the equation by 8
x = 12 / (8)
We get the answer: x = 3/2
Sum and product of roots
[src]
sum
0 + 3/2
$$0 + \frac{3}{2}$$
=
3/2
$$\frac{3}{2}$$
product
1*3/2
$$1 \cdot \frac{3}{2}$$
=
3/2
$$\frac{3}{2}$$
3/2
The graph