Question

please give correct answer​

Answer 1

Answer:

25x^2+4y^2+9z^2-20xy-12yz+30xy

Step-by-step explanation:

this is factor is right

Answer 2

Answer:

$1) {(5x - 2y + 3z)}^{2} \\ \\2)(2x - 5)(x - 2)(x + 3) \\ \\3)(6x + 9y)(36 {x}^{2} - 54xy + 81 {y}^{2} )$

That's all

If you need x, y, z solutions, ask them in question. I just did factorisation.