Question

what number should be added to x²+6x to make it perfect square?​

Answer 1

Answer:

To make x2+6x a perfect square, divide the coefficient of x by 2 and add the square of the result to make this a perfect square. Hence 62=3 and 32=9. We should add 9 to make x2+6x a perfect square.

Step-by-step explanation:

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Answer 2

Answer:

to make it a perfect square we must add 9 to it