Question

simplify
(_2)-3 × (_2)-4​

Answer 1

Answer:

(2)-3*(2)-4=-6*-8=+48

Answer 2

To simplify : $(2)^{-3} \times(2)^{-4}$

Solution:

• law of exponent :

1. Product law: According to this law if bases of two terms are same then their powers are added keeping the base same. i.e. $a^{m}+a^{n}=a^{m+n}$

• Therefore , on solving according to above rule we get ,

     $(2)^{-3} \times(2)^{-4}$

     $= 2^{-3-4} \\=2^{-7} \\= -128$

Hence value will be $-128$ .