Question

Solve by using identities... 1) (3+4)(3-4). 2)(x+5)(x+6). 3) (x-2)(x-2). 4) (y+3)(y-3). 5)(a+x)(a-x)​

Answer 1

Answer:

1) — 3²-4²

2) - x²+(5+6) x + 5×6