Question

ayudaa doy corona es para hoy porfavor​

Answer 1

Respuesta:

2.-  $(3x+7z)^{2} = (3x)^{2}+2(3x)(7z)+(7z)^{2} =9x+42xz+49z^{2}$

3.- $(8a-5b)^{2} =(8a)^{2}-2(8a)(5b)+(5b)^{2} =64a^{2} -80ab+25b^{2}$

4.- $(8p^{2}+10q^{3} )^{2} = (8p^{2} )^{2} +2(8p^{2})(10q^{3})+(10q^{3} )^{2} =64p^{4}+160p^{2}q^{3} +100q^{6}$