Question

7.
Verify the following and state the property used.
(a) (-21) [(-4) + (-6)] = (-21) (4) + (-21) (-6)​

Answer 1

Answer:

(-21)×[(-4)+(-6)]=[(21)×(-4)]+[(-21)×(-6)]

L.H.S. R.H.S. (-21)×[(-4)+(-6)] [(-21)×(-4)]+[(-21)× --

=> (-21)×[-4-6]. --(-6)]

=> (-21)×(-10). => 84 +126

=> (-21×-10). =>210

=> 210

Answer 2

Answer:

LHS

-21(-10)

210

RHS

-21*4+-21*6

-81+126

45

HENCE not equal