Question

The value of n when 7²n+³ =1 is
______________

take 50 points ...........
give correct answer........​

Answer 1

Answer:

7²n+³=7⁰ (7⁰=1)

bases are same

so exponent must be same

2n+3=0

2n=‐3

n=‐3/2

Answer 2

${7}^{2n + 3} = 1$

${7}^{2n + 3} = {7}^{0} \: as \: ( {7}^{0} = 1)$

on comparing powers we get,

2n+3=0

$n = \frac{ - 3}{2}$