retak + sakit :(
90² × 20
_______
90² × 20
_______
90² × 20
= ( 90 × 90 ) × 20
= 8.100 × 20
= 162.000
SOAL 1
___________________________________________
90² × 20
= (90.90) × 20
= 8.100 × 20
= 162.000
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