сократите дробь:
1)x^2+3x
________
3a+ax
2) b^2
___________
b^2+bc
3) 2a+4
_________
a^2-4
4) x^2-y^2
__________
x^2-xy
1)x^2+3x
________
3a+ax
2) b^2
___________
b^2+bc
3) 2a+4
_________
a^2-4
4) x^2-y^2
__________
x^2-xy
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Answers & Comments
a(3+x) a
2) b² = b
b(b+c) b+c
3) 2(a+2) = 2
(a+2)(a-2) a-2
4) (x+y)(x-y) = x+y
x(x-y) x