Question

A 4√5 + 9√7 - 3√5 -6√7 =
B √98 - √72 =
C 2√20 - √45 + 6√5 =
D −8√28 + 3√63 + √343=

Answer 1

A) 4√5 + 9√7 - 3√5 -6√7

√5 + 3√7

= 10,17332

B ) √98 - √72

7√2 - 6√2

= 1,41421

C) 2√20 - √45 + 6√5

4√5 - 3√5 + 6√5

7√5

= 15,65248

D) −8√28 + 3√63 + √343

-16√7 + 9√7 + 7√7

= 0