Hey there!
4a + 3b + 2a
=> 4a + 3b + 2a
=> 4a + 2a - 3b
=> 6a - 3b
Therefore, 4a + 3b + 2a = 6a - 3b
[tex] \\\ \\ \\{x}^{2} + 2y + 8 {x}^{2} [/tex]
[tex]-› \:{x}^{2} + 8 {x}^{2} - 2y[/tex]
[tex]-› \: 9 {x}^{2} - 2y[/tex]
Therefore, [tex] {x}^{2} + 2y + 8 {x}^{2} [/tex] = [tex]\: 9 {x}^{2} - 2y[/tex]
