Question

if you want points take but please follow ​

Answer 1

(a) LHS :-

18 × (7 + (-3)]

= 18 × (7 - 3)

• [As (+) × (-) = (-)]

= 18 × 4

= 72

RHS :-

[18 × 7] + [18 × (-3)]

= 18 × [7 + (-3)]

• (By distributive property)

• [As (+) × (-) = (-)]

= 18 × 4

= 72

LHS = RHS

$\rule{110}2$

(b) LHS :-

(-21) × [(-4) + (-6)]

= (-21) × (-4 - 6)

• [As (+) × (-) = (-)]

= -21 × -10

= 210

• [As (-) × (-) = (+)]

RHS :-

[(-21) × (-4)] + [(-21) × (-6)]

= (-21) × [(-4) + (-6)]

• (By distributive property)

= (-21) × -10

= 210

• [As (-) × (-) = (+)]

LHS = RHS

Mark as the brainliest ☺

Answer 2

Answer:

Step-by-step explanation:

(a) LHS :-

18 × (7 + (-3)]

= 18 × (7 - 3)

• [As (+) × (-) = (-)]

= 18 × 4

= 72

RHS :-

[18 × 7] + [18 × (-3)]

= 18 × [7 + (-3)]

• (By distributive property)

• [As (+) × (-) = (-)]

= 18 × 4

= 72

LHS = RHS

(b) LHS :-

(-21) × [(-4) + (-6)]

= (-21) × (-4 - 6)

• [As (+) × (-) = (-)]

= -21 × -10

= 210

• [As (-) × (-) = (+)]

RHS :-

[(-21) × (-4)] + [(-21) × (-6)]

= (-21) × [(-4) + (-6)]

• (By distributive property)

= (-21) × -10

= 210