hectormartinez7901 hectormartinez7901 21-03-2024 Mathematics contestada Simplify the expression: 2(3+x)(3) - (3+x)(2) + 2.a) ( 6x³ + 36x² + 78x + 56 ) b) ( 6x³ + 36x² + 78x + 52 ) c) ( 6x³ + 36x² + 74x + 52 ) d) ( 6x³ + 32x² + 74x + 52 )