1.Simplify:
(a) t^2-7t^2+5t^2
(b) x+xy-2xy
F.1 math
2007-07-31 7:15 am
回答 (6)
2007-07-31 7:19 am
✔ 最佳答案
(a) t^2 - 7t^2 + 5t^2= -t^2
(b) x+xy-2xy
= x-xy
= x(1-y)
2007-07-31 5:50 pm
(a) t^2 - 7t^2 + 5t^2
= -t^2
(b) x+xy-2xy
= x-xy
= x(1-y)
= -t^2
(b) x+xy-2xy
= x-xy
= x(1-y)
2007-07-31 5:00 pm
(a). t^2 - 7t^2 + 5t^2
= -t^2
(b). x + xy - 2xy
= x - xy
= x (1 - y)
= -t^2
(b). x + xy - 2xy
= x - xy
= x (1 - y)
2007-07-31 7:21 am
a) t^2-7t^2+5t^2
= -6t^2+5t^2
= -t^2
(b) x+xy-2xy
=x-xy
=x(1-y)
唔知岩唔岩希望幫到你
= -6t^2+5t^2
= -t^2
(b) x+xy-2xy
=x-xy
=x(1-y)
唔知岩唔岩希望幫到你
參考: me
2007-07-31 7:20 am
(a)
t^2-7t^2+5t^2
=t^2(1-7+5)
=-t^2
(b)
x+xy-2xy
=x(1+y-2y)
=x(1-y)
t^2-7t^2+5t^2
=t^2(1-7+5)
=-t^2
(b)
x+xy-2xy
=x(1+y-2y)
=x(1-y)
2007-07-31 7:17 am
(a)(1-7+5)t^2
= -t^2
(b)x-xy
=x(1-y)
= -t^2
(b)x-xy
=x(1-y)
收錄日期: 2021-04-12 20:43:01
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