nicolelorah365 nicolelorah365

11-11-2020
Mathematics

contestada

solve the equation
7x^2+21=0

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BangChan8 BangChan8

11-11-2020

Subtract 21 from both sides
7x^2=-21
Divide by seven on both sides
X^2=-3
Square root both sides

***X= square root of -3***
:)

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