Question

Write as a square of a binomial

4.8xy+36y^2+0.16x^2

Answer 1

Rearrange 0.16x^2+4.8xy+36y^2
Take 4 out 4(0.04x^2+1.2xy+9y^2)
Now its a square 4(0.2x+3y)^2
If we multiply it out
0.04x^2+0.6xy+0.6xy+9y^2
0.04x^2+1.2xy+9y^2

Answer 2

(6y+0.4x)^2

Explanation: