5t^4 * 5t^5 : 15t^4 помогите пж

Question

5t^4 * 5t^5 : 15t^4 помогите пж

Answer 1

5 1/6+4/15t=-2/5t-2/34/15t+2/5t=-2/3-5 1/64/15t+6/15t=-4/6-31/610/15t=-35/62/3t=-35/6t= -35/6: 2/3t= -35/6*3/2t=-35/4t=-8 3/4