Question

Find the value of k if (-2)k+1 × (-2)3 = (-2)7 using laws of exponents

Answer 1

Answer:

k=4

Step-by-step explanation:

(-2)k+1×(-2)=(-2)7

-2k+-6=-14

-2k=-14+6

-2k=-8

k=-8/-2

k=4