Question

1.y^2+y+4/1 2.25a^2-80a+64 3.4n^3-4n^2+n 4.2mx^2+4mx+2m 5.a^

Answer 1

1.y^2+y+1/4

=(y+1/2)²

2.25a^2-80a+64

=(5a-8)²

3.4n^3-4n^2+n

=n(4n²-4n+1)

=n(2n-1)²

4.2mx^2+4mx+2m

=2m(x²+2x+1)

=2m(x+1)²

5.a^2+2a(b+c)+(b+c)^2

=(a+b+c)²