Svar:
# 14sqrt (2) #
Forklaring:
#color (blå) (32 = 4 ^ 2 * 2 rarr sqrt (32) = 4sqrt (2)) #
#color (rød) (50 = 5 ^ 2 * 2 rarr sqrt (50) = 5sqrt (2)) #
#color (grønn) (18 = 3 ^ 2 * 2 rarr sqrt (18) = 3sqrt (2)) #
Derfor
#COLOR (hvit) ("XXX") 2color (blå) (sqrt (32)) + 3color (red) (sqrt (50)) - 3color (grønn) (sqrt (18)) #
#COLOR (hvit) ("XXX") = 2 * farge (blå) (4sqrt (2)) + 3 * farge (rød) (5sqrt (2)) - 3 * farge (grønn) (3sqrt (2)) #
#COLOR (hvit) ("XXX") = 8sqrt (2) + 15sqrt (2) -9sqrt (2) #
#COLOR (hvit) ("XXX") = 14sqrt (2) #
