Question

преобразуйте в многочлен
1) (m-4)(m+4)+m(5-m)
2)(x-8)^2-(x-3)(x+3)

Answer 1

1)$m^{2}$-16+5m-$m^{2}$=5m-16
2)$x^{2}$-16x+64-$x^{2}$-9=55-16x

Answer 2

1)(m-4)(m+4)+m(5-m)=(m²-16)+(5m-m²)=m²-16+5m-m²=5m-16
2)(x-8)²-(x-3)(x+3)=(x²-16x+64)-(x²-9)=x²-16x+64-x²+9=-16x+73