Astudent council has 6 seniors, 5 juniors, and 1 sophomore as members. how many ways can a 3 member committe be formed that includes one member from each class

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Use the distributive property -7(-2x+u-2)

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.