18 x [7 +(-3)] = [18 x 7] + [18 X (-3)]
(-21)× [(-4)+(-6)]=[(-21) × (- 4)] + [(-21) (-6)
Answers
72=126+(-54)
72=72
84-6=84×-4+(-21)(-6)
78=336+(-21)(-6)
78=315-6
78 is not 309....
Answer:
Step-by-step explanation:
1. L.H.S. R.H.S.
= 18 x (7-3) = 126 + (-54)
= 18 x 4 = 126-54
= 72 = 72
Therefore, L.H.S. = R.H.S.
2. L.H.S. R.H.S.
= (-21) x (-4-6) = 84 + 126
= (-21) x (-10) = 210
= 210
Therefore , L.H.S. = R.H.S.