Question

I need to expand this​

Answer 1

Answer:

(a2+b2+c2+2ab+2bc+2ca)

=(3x)2+(2y)2+(7)2+2(3x)(2y)+2(2y)(7)+2(7)(3x)

=9x2 +4y2 +49+12xy+28y+42x

Answer 2

(3x^2 + 2y^2 + 7)^2

= 9x^4 + 4y^4 + 49 + 12x^2 •y^2 + 28y^2 + 42x^2