2 {4+5x-[3+2 (3x-4) - 2 (3x-5) + 4x]}
Matematika
Stevendharmawan
Pertanyaan
2 {4+5x-[3+2 (3x-4) - 2 (3x-5) + 4x]}
1 Jawaban
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1. Jawaban cupid85
2 { 4 + 5x - ( 3 + 2(3x - 4 ) - 2(3x - 5 ) + 4x }
= 2 { 4 + 5x - ( 3 + 6x - 8 - 6x + 10 ) + 4x }
= 2 { 4 + 5x - 5 + 4x }
= 2 { 9x - 1 }
= 18x - 2