Question

multiple (x-2y+3) by (x+2y)​

Answer 1

Step-by-step explanation:

(x-2y+3)(x+2y)

=

${x}^{2} + 2xy - 2xy - 4 {y}^{2} + 3x + 6y$

After simplifying more we get

$= {x}^{2} + 3x - 4 {y}^{2} + 6y$