Question

1) (2x+2y) (2x-2y)

2) (3a +2b) (3a -2b)

3) (a-4b) (a+4b)

4) (7p-5z) (7p+5z)

5) (9x+10w) (9x-10w)
si me pueden ayudar porfa

Answer 1

$1).(2x + 2y)(2x - 2y) \\ (2x) {}^{2} - (2y) {}^{2} \\ 4x {}^{2} - (2y) {}^{2} \\ 4x {}^{2} - 4y {}^{2}$

$(3a ){}^{2} - (2b) {}^{2} \\ 9a {}^{2} - (2b) {}^{2} \\ 9a {}^{2} - 4b {}^{2}$

$(7p - 5z)(7p + 5z) \\ (7p) {}^{2} - (5z) {}^{2} \\ 49p {}^{2} - (5z) {}^{2} \\ 49p {}^{2} - 25z {}^{2}$

$(9x + 10w)(9x - 10w) \\ (9x + 10w)( - 9 \times 10w) \\ (9x + 10w)( - 90w) \\ - 810wx - 900w {}^{2}$