Question

calculati:a)6√50-√200-4√20+9√32=
va rog frumos!

Answer 1

$6 \sqrt{50} - \sqrt{200} - 4 \sqrt{20} + 9 \sqrt{32} = \\ = 30 \sqrt{2} - 10 \sqrt{2} - 8 \sqrt{5} + 36 \sqrt{2} \\ = 56 \sqrt{2} - 8 \sqrt{5}$

Answer 2

6√50-√200-4√20+9√32=

=6√2·25-√8·25-4√4·5+9√2·16

=6√2·5²-√2²2·5²-4√2²5+9√2·4²

=30√2-10√2-8√5+36√2

=56√2-8√5