Question

3 elevado a x+3 = 12

Answer 1

3 ^{x+1} + 3^{x+2} =12

3 ^{x+1} + 3^{x+2} = 3 +9

3 ^{x+1} + 3^{x+2} = 3^{1} + 3^{2}

x+1 + x+2 = 1+2

2x+3 =3

2x=0

x=0