KSEEB Solutions for Class 8 Maths Chapter 10 Exponents Ex 10.7
KSEEB Solutions for Class 8 Maths Chapter 10 Exponents Ex 10.7
Karnataka Board Class 8 Maths Chapter 10 Exponents Ex 10.7
Question 1.
Use the laws of exponents and simplify
Answer:

Question 4.
Find the value of each of the following expressions.
(a). (32)2 – (-2)3)2 – (-(5)2)2
= 34 – (- 2 x – 2 x – 2)2 – (-52 )2
= 34 – (-23)2 – 54
= 81 – 26 – 625
= 81- 64 – 625
= 81 – 689
= – 608
(b). ((0.6)2)0 – ((4.5)0)-2
= (0.6)2 x 0 – (4.5)0 x -2
= (0.6)0 – (4.5)0
= 1 – 1
= 0
(c).