问题
填空题
当a=3.2,b=2.4,c=1.5时,ab-ac的值是______.
答案
当a=3.2,b=2.4,c=1.5,
ab-ac,
=a(b-c),
=3.2×(2.4-1.5),
=3.2×0.9,
=2.88.
故答案为:2.88.
当a=3.2,b=2.4,c=1.5时,ab-ac的值是______.
当a=3.2,b=2.4,c=1.5,
ab-ac,
=a(b-c),
=3.2×(2.4-1.5),
=3.2×0.9,
=2.88.
故答案为:2.88.