Ano ang 2sqrt {32} + 3sqrt {50} - 3sqrt {18}?

Ano ang 2sqrt {32} + 3sqrt {50} - 3sqrt {18}?
Anonim

Sagot:

# 14sqrt (2) #

Paliwanag:

#color (asul) (32 = 4 ^ 2 * 2 rarr sqrt (32) = 4sqrt (2)) #

#color (pula) (50 = 5 ^ 2 * 2 rarr sqrt (50) = 5sqrt (2)) #

#color (green) (18 = 3 ^ 2 * 2 rarr sqrt (18) = 3sqrt (2)) #

Samakatuwid

#color (white) ("XXX") 2color (blue) (sqrt (32)) + 3color (red) (sqrt (50)

2 kulay (asul) (4sqrt (2)) + 3 * kulay (pula) (5sqrt (2)) - 3 * kulay (green) (3sqrt (2)) #

#color (white) ("XXX") = 8sqrt (2) + 15sqrt (2) -9sqrt (2) #

#color (puti) ("XXX") = 14sqrt (2) #