October 2018 1 80 Report
1. Efectuar:
(x+5)(x elevado 2
–5x+25) – 125
2. Reducir:
(x+4)(x elevado 2
–4x+16)+(x–4)(x elevado 2
+4x+16)
3. Efectuar:
(x–4)(x elevado 2
+4x+16) – (x–1)(x elevado 2
+x+1)
6. Efectuar:
(5+y)(5+3y)–(2+3y)(2+5y)+12(y+1)(y–1)–9
7. Efectuar:
(x elevado 2
–2x+4)(x+2)+(x–2)(x elevado 2
+2x+4) xfis lo necesito urgente!!!

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