Question

a) $5 \sqrt{7} - \sqrt{28} + 2\sqrt{112} =$
b) $\sqrt{72} + \sqrt{98} - 2 \sqrt{128} =$
c) $2 \sqrt{80} - 3 \sqrt{125} - 4 \sqrt{180} =$

Answer 1

A) = 5√7-2√7+8√7= 11√7
B)=6√2+7√2-16√2= -13√2
C)=8√5-15√5-24√5=-31√5