srbryant srbryant

04-05-2021
Mathematics

contestada

what number completes the square x^2+18x+_____
(a).81
(b) .324
(c) .-9
(d).9

Respuesta :

Аноним Аноним

04-05-2021

Step-by-step explanation:

a) 81 is the answer of your question

hope it is helpful to you

Ver imagen Аноним

Answer Link

DontEatBats DontEatBats

04-05-2021

(a+b)^2= a^2 +2ab+b^2

First you divide 18 by 2 which equals to 9

To complete the square multiply that number by itself
9^2=81

So the correct choice is A

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