Question

If a = -25, b = 20 cm and c = -10, verify that:
(i) a + (b + c) = (a + b) + c
(ii) a × (b + c) = a × b + a × c
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Answer 1

Given :

• a = -5
• b = 20
• c = -10

To Verify :

• (i) a + (b + c) = (a + b) + c
• (ii) a × (b + c) = a × b + a × c

Solution :

(i) a + (b + c) = (a + b) + c

⇝ (-5) + {20 + (-10)} = {(-5) + 20} + (-10)

⇝ (-5) + 10 = 15 + (-10)

⇝ 5 = 5

Hence, verified. ☑️

(ii) a × (b + c) = a × b + a × c

⇝ (-5) × {20 + (-10)} = (-5) × 20 + (-5) × (-10)

⇝ (-5) × 10 = (-100) + 50

⇝ (-50) = (-50)

Hence, verified. ☑️

ㅤㅤㅤㅤㅤㅤㅤ❥Hope this will help you!♡

Answer 2

Answer:

it is correct

Step-by-step explanation:

(i)a+(b+c)=55

(a+b)+c=55

(ii)a*(b+c)=750

a*b+a*c=750