Question

x = radical din : 18la a2a + 24 la a2a +40 la a2a
radical din x= ?

Answer 1

324+576+1600 = radical din 2500 sper ca te am ajutat

Answer 2

[tex]\it{x=\sqrt{18^2+24^2+40^2}=\sqrt{2^2\cdot9^2+2^2\cdot12^2+2^2\cdot40^2} \\\;\\ = \sqrt{4\cdot81+4\cdot144+4\cdot400} = \sqrt{4\cdot625} = 2\cdot25 \\\;\\ {x = 2\cdot25 \Longrightarrow \sqrt{x} = \sqrt{2\cdot25} = 5\sqrt2}[/tex]