Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x-y=7
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Equation 1/(x+6)=2
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Equation (x-4)^2-x^2=0
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Equation 6/(x+5)=-5
- Express {x} in terms of y where:
- 7*x-1*y=-7
- 10*x-15*y=16
- -14*x-12*y=5
- 13*x-12*y=19
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Identical expressions
- (x- four)^ two -x^ two = zero
- (x minus 4) squared minus x squared equally 0
- (x minus four) to the power of two minus x to the power of two equally zero
- (x-4)2-x2=0
- x-42-x2=0
- (x-4)²-x²=0
- (x-4) to the power of 2-x to the power of 2=0
- x-4^2-x^2=0
- (x-4)^2-x^2=O
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Similar expressions
- (x+4)^2-x^2=0
- (x-4)^2+x^2=0
(x-4)^2-x^2=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
Expand expressions:
Reducing, you get:
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = -16$$
Divide both parts of the equation by -8
We get the answer: x = 2
(x-4)^2-x^2 = 0
Expand expressions:
16 + x^2 - 8*x - x^2 = 0
Reducing, you get:
16 - 8*x = 0
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = -16$$
Divide both parts of the equation by -8
x = -16 / (-8)
We get the answer: x = 2
The graph