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Chapter 9: Q 447. (page 1124)

Simplify:

(a) -643

(b) -164

(c)-2435

Short Answer

Expert verified

(a) -643=-4

(b) localid="1650992412457" -164=Not a real number

(c)-2435=-3

Step by step solution

01

Part (a) Step 1: Given Information

The given expression is-643.

02

Part (a) Step 2: Simplification

As -64=-43.

Expression becomes -433

Simplification gives-4.

03

Part (b) Step 1: Given Information

The given expression is-164.

04

Part (b) Step 2: Simplification

There is no real number whose fourth power is -16.

Hence there is no real number.

05

Part (c) Step 1: Given Information

The given expression is-2435.

06

Part (c) Step 2: Simplification

As -243=-35

Expression becomes -355

Simplification gives-3.

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