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    Work: Find the solution of equation x2+16 = (8－x)2 .
    Question type: Equation
    Solution:Original question:

x

×

2

+

16

=

(

8

−

x

)

×

2

    Remove the bracket on the right of the equation:

Right side of the equation =

8

×

2

−

x

×

2

=

16

−

x

×

2

    The equation is transformed into :

2

x

+

16

=

16

−

2

x

    Transposition :

2

x

+

2

x

=

16

−

16

    Combine the items on the left of the equation:

4

x

=

16

−

16

    Combine the items on the right of the equation:

4

x

=

0

    The coefficient of the unknown number is reduced to 1 :

x

=

0

÷

4

=

0

×

1 4

    We obtained :

x

=

0

    This is the solution of the equation.

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