Question

(-7)^x+¹ × (-7)⁷ = (-7)¹⁹​

Answer 1

Answer:

x=11

Step-by-step explanation:

(-7)^x+1 × (-7)^7= (-7)^19

a^m×a^n=a^m+n

(-7)^x+1 × (-7)^7= (-7)^19

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

since bases are same, equate the powers

x+1+7=19

x+8=19

x=19-8

x=11

(-7)^x+1 × (-7)^7= (-7)^19

(-7)^11+1 × (-7)^7= (-7)^19

(-7)^12 × (-7)^7= (-7)^19

(-7)^12+7= (-7)^19

(-7)^19= (-7)^19