Factorise x^2-6 need help for my hegarty maths

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab