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=
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3² . =
=
=
-2x + 6 = -
-2x = - - 6
-2x = - -
-2x = -
x = - per (-2)
x = 20/6
x = 10/3
x = 3
(d.)
Maaf, kalau salah..
Semoga bermanfaat.. :) !!
[3 .]² =
[ 3 .]² =
3² . =
=
- 2x + 6 =
- 2x = - 6
- 2x = -
x =
x =
x = 3
11) + - 810 = 0 ...bagi dengan 3²
+ - 90 = 0
+ - 90 = 0
+ - 90 = 0
+ - 90 = 0
( - 9) ( + 10) = 0
- 9 = 0 atau + 10 = 0
= 9 atau = - 10 (tak memenuhi)
= 3²
x = 2