SOAL :
1) [ 2X - 2 ] [ X + 5 ]
= 2 [ X × X ] + 2 [ X × 5 ] - 2X - [ 2 × 5 ]
= 2X² + 10X - 2X - 10
= 2X² + [ 10 - 2 ]X - 10
= 2X² + 8X - 10
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SOAL :
1) [ 2X - 2 ] [ X + 5 ]
= 2 [ X × X ] + 2 [ X × 5 ] - 2X - [ 2 × 5 ]
= 2X² + 10X - 2X - 10
= 2X² + [ 10 - 2 ]X - 10
= 2X² + 8X - 10