Постав кращим пліз

2.1)(m-2)*(m+2)*(m²+4)*(m⁴+16)=m²- 4*(m²+4)*(m⁴+16)=m²- 4*m⁶+64=m⁸-4*64=m⁸-256

2.2)(3x-8y)*(3x+8y)-(3x-8y)²=9x²-64y²-(9x-48xy+64y²)=-64y²+48xy-64y²= -128y²+47xy

№1

1)x*x-y*y

2)a*a - 1*9

3)10*1+1*6-y*y

4)1*100x*1*100x-y*y

5)10*4+1*9a*10*4+1*9a-10*8+1*1b*10*8+1*1b

6)10*2+1*5/10*3+1*6-0.1*6+0.01*4y*0.1*6+0.01*4y