6 more then y in expression form

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)