Mister Exam
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How to use it?
- Equation:
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Equation x^2+9=(x+9)^2
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Equation cos(x)=-1
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Equation 5-2(x-1)=4-x
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Equation 9*(x-5)=-x
- Express {x} in terms of y where:
- 10*x+5*y=-17
- 14*x+16*y=-3
- -19*x+1*y=0
- 9*x-4*y=2
- Integral of d{x}:
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x^2+9
- Factor polynomial:
- x^2+9
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Identical expressions
- x^ two + nine =(x+ nine)^ two
- x squared plus 9 equally (x plus 9) squared
- x to the power of two plus nine equally (x plus nine) to the power of two
- x2+9=(x+9)2
- x2+9=x+92
- x²+9=(x+9)²
- x to the power of 2+9=(x+9) to the power of 2
- x^2+9=x+9^2
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Similar expressions
- x^2-9=(x+9)^2
- x^2+9=(x-9)^2
x^2+9=(x+9)^2 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:
$$- 18 x = 72$$
Divide both parts of the equation by -18
We get the answer: x = -4
x^2+9 = (x+9)^2
Expand expressions:
x^2+9 = 81 + x^2 + 18*x
Reducing, you get:
-72 - 18*x = 0
Move free summands (without x)
from left part to right part, we given:
$$- 18 x = 72$$
Divide both parts of the equation by -18
x = 72 / (-18)
We get the answer: x = -4
The graph