Question

Find the value of k if (-2)^(k+1 )× (-2)^3 = (-2)^7 ​

Answer 1

Answer:

k =3

Step-by-step explanation:

a^m × a^n = a^m+n

so (-2)^k+1+3 = (-2)^7

(-2)^k+4 =(-2)^7

k+4 = 7

k = 3

hence proved