Question

37•307+293•37-37•77-33•37

3)
8•11•323+277•44•2+11•2la a3a•920-4•22•731

4)
(3)la a 3 la a4 a•(3)la a 2la a5 a:(3)la a 5a la a4 a-1 la a 9 a

Answer 1

37×307+293×37-37×77-33×37 = 37 x ( 307 + 293 - 77 - 33) = 37 x (600 - 77 - 33) = 37 x 490 =  18130

8×11×323+277×44×2+11×8×920-4×22×731 = 8 x ( 11×323 + 277 × 11 + 11 × 920 - 11 ×731) = 8 × 11 ×(323 + 277 + 920 - 731) = 88 × (600 + 920 - 731) = 88 × 789 = 69432

(3³)^4 × (3²)^5 : (3^5)^4 (-1)^9 = 3^12 × 3^10 : 3^20 × (-1) = 3^(12 + 10 - 20) × (-1) = 3² × (-1) = -9