For a non-zero rational number z, (z-2)3 is equal to
(a) z6
(b) z-6
(c) z1
(d) z4

Solution:

Given, the expression is (z-2)3

We have to find the value of the expression.

Using the law of exponents,

(am)n = amn

From the given expression,

m = -2

n = 3

Now, mn = (-2)3

= -6

Therefore, (z-2)3 is equal to z-6.

✦ Try This: For a non-zero rational number z, (z-4)3 is equal to

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 12

NCERT Exemplar Class 8 Maths Chapter 8 Problem 31

For a non-zero rational number z, (z-2)3 is equal to (a) z6, (b) z-6, (c) z1, (d) z4

Summary:

For a non-zero rational number z, (z-2)3 is equal to z-6.

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