32,05×(28,03+11,5)-1266,9365
32,05 * ( 28,03 + 11,5 ) - 1266,9365 = 0 1) 28,03 + 11,5 = 39,53 2) 32,05 * 39,53 = 1266,9365 3) 1266,9365 - 1266,9365 = 0