Question

1. Find x, if (-7)3x * (-7)2 = (-7)11


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Answer 1

Answer:

Step-by-step explanation:

(-7)3x × (-7)2 = (-7)11

a^m x a^n = a^m+n

(-7)^3x+2 = 7^11

Bases are same equate the powers.

3x+2=11

3x= 11-2

3x= 9

x = 9/3

x=3

     Hope it helps you. Take care.

Answer 2

Answer:

3

Step-by-step explanation:

(-7)3x=-21x and (-7)2 = -14and (-7)11=-77

putting the value -21x × -14= -77

-21x =-77+14

-21x = -63

x =-63÷-21

x =3

hope it helps