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In order to make this expression a perfect square trinomial, you would add 8.

x² +8x+ ?
True
False

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Final answer:

To make the expression x² +8x a perfect square trinomial, you would add 16.


Step-by-step explanation:

To make the expression x² +8x a perfect square trinomial, we need to find a number that, when added to the expression, will result in a square trinomial. The number we need to add is half the coefficient of the middle term squared. In this case, half of 8 is 4, and 4 squared is 16. Therefore, we would add 16 to the expression to make it a perfect square trinomial.


Learn more about Perfect square trinomials

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