و) $2\sqrt{98} + 3\sqrt{28} - \sqrt{63} + 4\sqrt{2} = $

ز) $3\sqrt{32} + 5\sqrt{12} - \sqrt{128} + 2\sqrt{27} = $

ح) $3\sqrt{45} + 4\sqrt{50} + 3\sqrt{20} - 5\sqrt{2} = $

ط) $2\sqrt[3]{24} + \sqrt[3]{135} - 2\sqrt[3]{375} + \sqrt[3]{40} = $

ی) $\sqrt{25x^{4}y^{6}z^{2}} = $

ک) $\sqrt[3]{27x^{6}y^{9}z^{4}} = $

ل) $\sqrt{(x+y)^{4}} = $