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Solnce55 [7]
2 years ago
7

Does anyone know this answer??

Mathematics
1 answer:
Tanzania [10]2 years ago
6 0

Answer:

6x

Step-by-step explanation:

x²+9-__=(x-3)²

lets dissosiate this one (x-3)²

(x-3)²=(x-3)(x-3)

=x²-3x-3x+9

=x²-6x+9 so x²+9-6x

so the answer is 6x

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Differential Equations - Reduction of order
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With reduction of order, we assume a solution of the form y_2=zy_1=ze^{2x}, with z=z(x). Then

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x(z''+4z'+4z)e^{2x}-(2x+1)(z'+2z)e^{2x}+2ze^{2x}=0
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This equation is also separable, so you can write

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Integrating both sides with respect to x gives

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Taya2010 [7]
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