Question

factorise the sum
16k^2-12mk-10m^2

Answer 1

Solution:

$16 {k}^{2} - 12km - 10 {m}^{2} \\ \\ 2(8 {k}^{2} - 6km - 5 {m}^{2} ) \\ \\ 2( {8k}^{2} - 10km + 4km - 5 {m}^{2} ) \\ \\ 2[2k(4k - 5m) + m(4k - 5m)] \\ \\ 2(2k + m)(4k - 5)$