Question

3. Verify the following:
a. 23+ [7+(-3)]= [23 7] + [23+(-3)]​

Answer 1

Answer:

-22×[(-3)+23]=(-22)×(-3)+(-22)×23

-22[-3+23]=(-22)×(-3)+(-22)×23

-22×20=66-506

-440=-440 prove

(ii)13×[7+(-8)]=13×7+13×(-8)

solution,

13×[7+(-8)]=13×7+13×(-8)

13×[7-8]=13×7+13×(-8)

13×(-1)=91-104

-13=-13 prove

(iii)(-11)×[(-5)+(-9)]=(-11)×(-5)+(-11)×(-9)

solution,

(-11)×[(-5)+(-9)]=(-11)×(-5)+(-11)×(-9)

(-11)×[-5-9]=(-11)×(-5)+(-11)×(-9)

(-11)×(-14)=(-11)×(-5)+(-11)×(-9)

154=55+99

154=154 prove

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Step-by-step explanation:

Answer 2

Step-by-step explanation:

LHS=23×(7+(-2))

=23×7+23(-2)

=RHS