Question

Алгебра помогите на скрине пж

Answer 1

$6) \ \displaystyle\bf\\\\\dfrac{\sqrt{m} -4}{\sqrt[4]{m} +2} =\dfrac{(\sqrt[4]{m} )^{2} -2^{2} }{\sqrt[4]{m} +2} =\dfrac{(\sqrt[4]{m} -2)(\sqrt[4]{m} +2) }{\sqrt[4]{m} +2} =\sqrt[4]{m} -2\\\\\\7)\\\\\sqrt{(2-\sqrt{3} )^{2} } =|2-\sqrt{3} |=2-\sqrt{3}$