__________________________
Rx
= 20² + 20 × 30²
= (20 × 20) + 20 × (30 × 30)
= 400 + 20 × 900
= 400 + 18.000
= 18.400
= 80 (8) + 700² × ¼
= 640 + (700 × 700) × ¼
= 640 + 490.000 × ¼
= 640 + 122.500 × 1
= 640 + 122.500
= 123.140
Penjelasan dengan langkah-langkah:
20² + 20 × 30²
= ( 20 × 20 ) + 20 × ( 30 × 30 )
______________________
80(8) + 700² × ¼
= ( 80 × 8 ) + 700 × 700 × ¼
= 640 + 700 × 175
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PENYELESAIAN
__________________________
Rx
= 20² + 20 × 30²
= (20 × 20) + 20 × (30 × 30)
= 400 + 20 × 900
= 400 + 18.000
= 18.400
= 80 (8) + 700² × ¼
= 640 + (700 × 700) × ¼
= 640 + 490.000 × ¼
= 640 + 122.500 × 1
= 640 + 122.500
= 123.140
Penjelasan dengan langkah-langkah:
20² + 20 × 30²
= ( 20 × 20 ) + 20 × ( 30 × 30 )
= 400 + 20 × 900
= 400 + 18.000
= 18.400
______________________
80(8) + 700² × ¼
= ( 80 × 8 ) + 700 × 700 × ¼
= 640 + 700 × 175
= 640 + 122.500
= 123.140