me ajudem por favor como faço pra responder essas expressões:?
a) (a+b)²
________
a+b
b) (a+b+c)dx
____________
(a+b+c)x
c) 3a+3b
__________
5a+5b
d) 5ab+5a
___________
15b+15
e) 5b+5c+mb+mc
________________
15+3m
f) a+b
____________
a²+2ab+b²
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Verified answer
a)(a+b)(a+b)
------------------=
a+b
a+b
b)
(a+b+c)dx
----------------=d
(a+b+c)x
c)
3(a+b)
-----------=
5(a+b)
3/5
d))
5a(b+1)=
----------=
15(b+1)
5a
-----
3
e)
5(b+c)+m(b+c)
----------------------=
3(5+m)
(5+m)(b+c)
----------------=
3(5+m)
(b+c)
--------
3
f)
a+b
----------------=
(a+b)(a+b)
1
-------
a+b
a)
(a + b)²/(a + b) = (a + b)*(a + b)/(a + b) = a + b
b)
(a + b + c)*d*x/((a + b + c)*x) = d
c)
(3a 1 3b)/(5a + 5b) = 3*(a + b)/5*(a + b) = 3/5
d)
(5ab+ 5a)/(15b + 15) = 5a*(b + 1)/15*(b + 1) = a/3
e)
(5b + 5c + mb + mc)/(15 + 3m) = (m + 5)*(b + c)/3*(m + 5) = (b + c)/3
f)
(a + b)/(a² + 2ab + b²) = (a + b)/(a + b)*(a + b) = 1/(a + b)
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