Question

Which polynomial is equivalent to (2h − 3k)(h + 5k)?

Answer 1

$(2h - 3k)(h + 5k) \\ = {2h}^{2} + 10hk - 3hk - {15k}^{2} \\ = {2h}^{2} + 7hk - {15k}^{2}$

Hope this helps. - M

Answer 2

$Hi \: \: there \\ We \: can \: factorise \: this \: polynomial \: and \: that \: will \: be \: its \: equivalent \\ \\ Let \: \: me \: do \: it - \\ \\ ( 2h - 3k ) \: ( h + 5 k ) \: \\ \\ = 2 {h}^{2} + 10hk - 3kh - 15 {k}^{2 } \\ \\ = 2 {h}^{2} + 7kh - 15 {k}^{2 } \:$
Thanks