Question 718760
When they say decreasing order, they just want the exponents to be sorted from largest to smallest. So 6 is the largest exponent here and it goes first. 3 is the next largest exponent, so it goes next. One is the next largest (the exponent for {{{-8a=-8a^1}}}), so that goes next. Finally, the last term is -3 since it has an exponent of 0 (-3 = -3a^0)


So the answer is {{{-11a^6 + 12a^3 - 8a - 3}}}