Question

Va rog ajutati-ma cat mai repede la a si la b.​

Answer 1

Răspuns:

a.$\sqrt{10}$

b.21

Explicație pas cu pas:

a. 6$\sqrt{10}$+10$\sqrt{2}$*2$\sqrt{5}$-24$\sqrt{10}$-$\sqrt{10}$=6$\sqrt{10}$+20$\sqrt{10}$-24$\sqrt{10}$-$\sqrt{10}$=$\sqrt{10}$

b.( $\frac{3\sqrt{3} }{3}$+$\frac{6\sqrt{3} }{6}$-$\frac{15\sqrt{3} }{3}$)*$\sqrt{3}$=($\sqrt{3}$+$\sqrt{3}$+5$\sqrt{3}$)*$\sqrt{3}$=7$\sqrt{3}$*$\sqrt{3}$=7*3=21