mdaniella522
08.10.2019 •
Mathematics
Ihave absolutely no clue how to do this
Solved
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Ответ:
X^2+18x=-45
Add (18/2)^2 to both sides.
X^2+18x+(18/2)^2= -45+(18/2)^2
(X+18/2)^2=36
(X+9)^2=36
Ответ:
x= -50
Step-by-step explanation:
multiple both sides -20=x+30
move the terms -x=30+20
calculate -x=50
change the signs x= -50