Question

Solve (4y-9)(3-y)=0 and If there is more than one solution, separate them with commas

Answer 1

y=3,9/4

Explanation:

Solve by FOIL, multiplying 4y and 3, 4y and -y, -9 and 3, and -9 and -y.

=-4y^2+21y-27

From here you can factor, getting -1(y-3)(4y-9)

set -1(y-3)(4y-9)=0 and solve

-1 cannot = 0 so that is crossed out

y-3=0 is y=3

4y-9=0 is y=9/4