What is the product? (-2d^2 + 5) (5d*2 - 6s)
0-10d^4+ 17d^2s-6s^2
0-10d^4+17d^4s^2-6s^2
0 -10d^4-7d^2-6s^2
0 -10d^4+17d^2S+6s^2

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?