Question

Find x of this sum....?????​

Answer 1

Step-by-step explanation:

(-7)x+1 ×(-7)7=(-7)¹⁹

a^m×a^n=a^mn

=(-7)^1+x+7=(-7)^19

if bases are equal powers are also equal

1+x+7=19

8+x=19

x=19-8

x=11

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Answer 2

as the base are same , that is minus7

and the powers are different

so,as we know, same base but different powers means we should add the powers when they are in multiplication.

hope you understood this concept