√[50] + 2√[32] – √[8]?

4 ⤊

√[50] + 2√[32] – √[8]?

2007-11-27 08:11:39 · 3 answers · asked by Perle Des Antilles 1 in Science & Mathematics ➔ Mathematics

3 answers

5√2 + 8√2 - 2√2 = 11√2

2007-11-27 10:25:39 · answer #1 · answered by Como 7 · 3⤊ 1⤋

â[50] + 2â[32] – â[8]
â(25*2)+2â(16*2)-â(4*2)
5â2+8â2-2â2=11â2

2007-11-27 16:15:57 · answer #2 · answered by xandyone 5 · 1⤊ 2⤋

sqrt(50)+2*sqrt(32)-sqrt(8)

sqrt(25*2)+2*sqrt(16*2)-sqrt(4*2)

sqrt(25)*sqrt(2)+2*sqrt(16)*sqrt(2)-sqrt(4)*sqrt(2)

5*sqrt(2)+2*4*sqrt(2)-2*sqrt(2)

5*sqrt(2)+8*sqrt(2)-2*sqrt(2)

sqrt(2)[5+8-2] (factor out sqrt(2) from all three terms)

sqrt(2)*(11)

11*sqrt(2)

2007-11-27 16:19:12 · answer #3 · answered by grompfet 5 · 0⤊ 1⤋