Question

Fill in the blank with a number to make the expression a perfect square. $x^{2}$ - 12x + $(find the square)$

Answer 1

Answer:

2

Step-by-step explanation:

Let the no. be y.

x^2-12x+y^2

=)x^2-2×x×y+y^2

as from the above we may find,

-12x=-2xy

=)y=12/6

=)y=2

Therefore the blank should be filled with 2.

Hope it helps...

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