Question

plzz solve asap tom is my xam
(c) part

Answer 1

break bracket
2xz-2x^2-2xy + 2yz - 2 y^2-2xy
2xz-2x^2-4xy+2yz -2y^2
is it right ans ? plz comment

Answer 2

$\underline{\bf{QUESTION}} : \\ \\ \tiny \bf{3l(l - 4m + 5n) - 4l(10n - 3m + 2l)}\\ \\ \underline{\bf{SOLUTION}} : \\ \\ \tiny \bf{3l(l - 4m + 5n) - 4l(10n - 3m + 2l)} \\ \\ \tiny\bf{ {3l}^{2} - 12lm + 15ln - 40ln + 12lm - {8l}^{2} } \\ \\ \tiny \bf{{ {3l}^{2} \cancel{ - 12lm} + 15ln - 40ln \cancel{+ 12lm} - {8l}^{2} }} \\ \\ \tiny \bf{ {3l}^{2} + 15ln - 40ln - {8l}^{2} } \\ \\ \rightarrow \tiny \bf{ { - 5l}^{2} - 25ln} \\ \\ > > \tiny \bf{ - 5l(l + 5n)}$