" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) -6x(3-y) dla x = 0,5 y = -4
-6*0,5(3+4)=-3*7=-21
b) 2b² -(4b²- 1) * 2 dla B = -1/2
2b² -8b²+2=-6b²+2=-6*(-1/2)²+2=-6*1/4+2=-3/2 +2=1/2=0,5
b) 2 ×( - ½)² - (4 × (-½)² - 1) = 2 × 1 - ( 4 × 1 - 1 ) = 2 - 3 = - 1
b)2 razy (-1/2) - 4 razy (-1/2 - 1) razy 2 = -1 - (-2 - 1 ) =-1 + 2 - 1 =0