Question

Match the expressions with their simplified versions.

Answer 1

Answer are in order from top to bottom

1. 8

2. square of 7

3. 1/2

4. 20

Answer 2

Answer:

Step-by-step explanation:

1. $4\sqrt{2}*\sqrt{2} = 4*\sqrt{2}^{2}=4*2=8$

2.$3\sqrt{7} -2\sqrt{7} =(3-2) \sqrt{7} = 1*\sqrt{7} =\sqrt{7}$

3.$\frac{\sqrt{7} }{2\sqrt{7} } =\frac{1}{2}$

4.$2\sqrt{5} *2\sqrt{5} =2*2*\sqrt{5} *\sqrt{5}=4*5=20$