Can somebody help me please? Make it right.

Answer: [tex]\frac{1}{t^{84} }[/tex]
Step-by-step explanation:
Use the exponent rule that [tex]x^{a}[/tex]·[tex]x^{b}[/tex]=[tex]x^{ab}[/tex] (In other words, because every factor in the expression has a base of t, we can add the exponents):
[tex]t^{0}[/tex]·[tex]t^{-27}[/tex]·[tex]t^{-57}[/tex]=[tex]t^{0+(-27)+(-57)}[/tex]=[tex]t^{-84}[/tex]
To give t a positive exponent, put t in the denominator of a fraction:
[tex]t^{-84} =\frac{1}{t^{84} }[/tex]
Answer:
1/(t^84)
Step-by-step explanation:
t^0 = 1. So that's 1 * t^-27 * t^-57
When you multiply a variable with an exponent, you add the exponents together. So...
t^(-27+-57) = t^(-84)
To get rid of the negative exponent, move it to the denominator. If it helps, imagine it like this...
(t^-84)/1 (anything over 1 equals itself)
And flip it!
1/(t^84)
If the exponent is negative in the denominator, move it to the numerator. It can be a bit more complicated than that, but for this question this solution works.