The exponent means that the expression is multiplied by itself, therefore, if we have
[tex](3x-4)^4[/tex]It means that (3x-4) is multiplied by (3x-4) four times!
[tex](3x-4)^4=(3x-4)(3x-4)(3x-4)(3x-4)^{}[/tex]That's the equivalent expression, the letter A is the correct answer
