Question

find the value of m for which (-4)^m+1×(-4)^5=(-4)^7​

Answer 1

Answer:

m=12

Step-by-step explanation:

(-4)^m+1×(-4)^5 =(-4)^7

(-4)^m+(-4)^5 = (-4)^7

m+5=7

m=12

Answer 2

Step-by-step explanation:

(-4)m+1 * (-4)5 = (-4)7

this gives, (-4)m+1 = (-4)7 / (-4)5

So, by law of indices, (-4)m+1 = (-4)7-5 = (-4)2

So, m+1 = 2

This gives, m=1