zacharyglenwalker zacharyglenwalker

11-05-2020
Mathematics

contestada

Which method is most effective? x^2−1=15

a-complete the square
b-square root
c-factor
d-quadratic formula

Respuesta :

Аноним Аноним

11-05-2020

Step-by-step explanation:

b.square root

x²-1=15

x²=16

square root on both side

x±4

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