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07-08-2021
Mathematics

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Complete the equation: x^ 2 +6x+__ =(_)^ 2

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sadovnichenkoant sadovnichenkoant

07-08-2021

Answer:

x^2+6x+9= (x+3)^2

Step-by-step explanation:

x^ 2 +6x+__ =(_)^ 2

The formula is a^2+2ab+b^2= (a+b)^2

x^2= a^2

x=a

6x=2ab where a=x

6x=2x*b

b=3

b^2=9

x^2+6x+9= (x+3)^2

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