Question

[(-8)-(-11)]×[(-18)-(-13)]×[(-78)-(-78)]​

Answer 1

Answer:

(a) 18 × [7 + (–3)] = [18 × 7] + [18 × (–3)]

18 × [4] = [18 × 7] + [–54]

18 × [4] = 126 –54

72=72

LHS=RHS

hence verified!

(b) (–21) × [(– 4) + (– 6)] = [(–21) × (– 4)] + [(–21) × (– 6)]

(–21) × (-10) = 84 +126

210 = 210

LHS = RHS

hence verified !