Đáp án:a)3353
b)6+226+3
c)6
d)6+6
Giải thích các bước giải:
a)5275−0,548+300−3212
=52⋅53−0,5⋅43+103−32⋅23
=53−23+103−343=3353
b)36−229−23+3+63
=2(33−2)3(33−2)+3(3+2(3)2
=23+3+23
=6+226+3
c)(32−23)(23+32)=(32)2)−(23)2=18−12=6
d)15−66+33−126
=32−2⋅3⋅6+(6)2+(26)2+2⋅2⋅6⋅3+32
=(3−6)2+(26+3)2=∣3−6∣+∣26+3∣
=3−6+26+3=6+6
