Answers

2016-04-04T20:29:42+05:30
(1) 18*[7+(-3)]=[18*7]+[18*(-3)] =18*(7-3)=126+(-54) = 18*4=126-54 = 72=72 (2) (-21)*[(-4)+(-6)]=[(-21)*(-4)]+[(-21)*(-6)] = -21*(-4-6)=(-21*-4)+(-21*-6) = -21*-10=84+126 = 210=210
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