a)17-11-14(-39)
b)125-4[3-7×(-2)]
c)(-2)mũ7:(-2)mũ4+8
d)(-14)×9-13×(-9)
a)17-11-14(-39) b)125-4[3-7×(-2)] c)(-2)mũ7:(-2)mũ4+8 d)(-14)×9-13×(-9)
By Madeline
By Madeline
a)17-11-14(-39)
b)125-4[3-7×(-2)]
c)(-2)mũ7:(-2)mũ4+8
d)(-14)×9-13×(-9)
a)17-11-14×(-39)
=17-11- (-546)
=6 – (-546)
=552
b)125-4×[3-7×(-2)]
=125-4×(3+14)
=125-12-56
=113-56
=57
c)$-2^{7}$ ÷ ($-2)^{4+8}$
=$-2^{7}$ ÷($-2)^{4}$+($-2)^{8}$
=(-128)÷(-16)+8
=8+8
=16
d) (-14)×9-13×(-9)
= (-126) – (-117)
=-9
Chúc bạn học tốt ^_^
a. =17-11+546
=6+546
=552
b. =125-4(3+14)
=125-12-56
=113-56
=57
c. =-128:-16+8
=8+8
=16
d. = 9(-14+13)
=9.(-1)
=-9