Question

thực hiện phép tính nha

Answer 1

a: \(=6\sqrt{2}+10\sqrt{2}-12\sqrt{2}=4\sqrt{2}\)

b: \(=\left|x+2\right|+\left|x-5\right|\)

=x+2+5-x=7

Answer 2

a.\(\sqrt{72}+2\sqrt{50}-3\sqrt{32}=6\sqrt{2}+10\sqrt{2}-12\sqrt{2}=4\sqrt{2}\)

b.= \(\sqrt{\left(x+2\right)^2}+\sqrt{\left(5-x\right)^2}=x+2+5-x=7\)