Os mai \({g}\) ydy cost mynediad un plentyn i’r sŵ, beth ydy'r gost ar gyfer \({7}\) plentyn?
\[{7}+{g}\]
\[{7}\times{g}\]
\[{7}{g}\]
Os mai \({g}\) ydy cost mynediad un plentyn a \({k}\) ydy cost mynediad un oedolyn i’r sŵ, beth ydy'r gost ar gyfer \({2}\) blentyn a \({3}\) oedolyn?
\[{2}{g}+{3}{k}\]
\[{2}{k}+{3}{g}\]
\[{2}{g}{3}{k}\]
Symleiddia \({5}{a}+{2}{b}-{a}+{b}\)
\[{5}+{3}{b}\]
\[{4}{a}-{3}{b}\]
\[{4}{a}+{3}{b}\]
Symleiddia \({5}{x}^{2}+{3} - {2}{x}^{2} - {4}\)
\[{3}{x}^{2}+{1}\]
\[{3}{x}^{2}-{1}\]
\[-{3}{x}^{2}-{1}\]
Symleiddia \({6}{x}^{2}+{7}-{2}{x}-{3}{x}^{2}-{5}{x}+{1}\)
\[{3}{x}^{2}-{7}{x}+{8}\]
\[{-3}{x}^{2}+{7}{x}+{8}\]
\[{3}{x}^{2}+{7}{x}+{8}\]
Symleiddia \({3}{a}\times{4}{a}{b}\)
\[{12}{a}{b}\]
\[{7}{a}{2}{b}\]
\[{12}{a}^{2}{b}\]
Symleiddia \({9}{q}^{2}\times{2}{q}^{5}\)
\[{18}{q}^{10}\]
\[{18}{q}^{7}\]
\[{11}{q}^{7}\]
Beth ydy \({4}({7}+{2}{a})\)?
\[{28}+{2}{a}\]
\[{11}+{6}{a}\]
\[{28}+{8}{a}\]
Beth ydy \({-x}({x}-{y})\)
\[{-2}{x}+{x}{y}\]
\[{-x}^{2}+{x}{y}\]
\[{-x}^{2}-{x}{y}\]
Ehanga \(({y}+{1})({y}-{4})\)
\[{y}^{2}+{5}{y}-{4}\]
\[{y}^{2}-{3}{y}-{4}\]
\[{y}^{2}+{3}{y}+{4}\]