Lunathemoonflower Lunathemoonflower

22-02-2019
Mathematics

contestada

I NEED HELP ASAP!!!

I need to determine the Unknown value that would make each trinomial a perfect square...

X²-___x+81

Respuesta :

MrGumby MrGumby

22-02-2019

Answer:

The number that would go in the blank to get a perfect square trinomial is 18

Step-by-step explanation:

The middle term can always be found by taking twice of the square root of the final term.

2 * √81 = 18

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