Question

Calcular:
1) (x + 5)2
=
2) ( a – 3)2
=
3) ( 2x + 7)2
=
4) (ax2
-by)2
=
5) (2/3x + 9y)2
=
6) (9x – 4) (9x + 4)=
7)(4/6y +5abc2
)
3
8) (7a2
x
3
-2 xa2
)
3

9) (5y +2/7 x)(5y -2/7 x)=
10) (2r – 3s)(2r+ 4m2
)

Answer 1

Respuesta:

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