42a^5-6a^2/6a
= 42a^5 - 6a^2 / 6a
To simplify this expression, we first divide the terms individually:
= 42a^5 / 6a - 6a^2 / 6a
Next, we simplify by dividing the coefficients and subtracting the exponents:
= 7a^(5-1) - a^(2-1)
= 7a^4 - a
Therefore, the simplified expression is 7a^4 - a.