R 2 3r 7 July 8, 2019 16 32 64 128 R 2 3r 7 0 Qquad 2 3r 7 )-( 2 r ) 10 2 r 7 )- 3r 2 3r 7 )-( 2 r simplified 3r 2 39r 90 r 2 3r 70 12 3r 2 7 r 6 2 3r 7 − 2 r equivalent expression R 2 3 2(3r + 7) - (2 + r)
