Question

Даю 35 баллов!
Спрости вирази:

Answer 1

Ответ:

$a) \: {a}^{2} (1 + 2a + {b}^{2} ) - ( {a}^{2} {b}^{2} + {a}^{2} ) = {a}^{2} + 2 {a}^{3} + {a}^{2} {b}^{2} - {a}^{2} {b}^{2} - {a}^{2} = \boxed{ \bold{2 {a}^{3}}} .$

$b) \: 4xy(2x - y) - 2x(4xy - 1) = 8 {x}^{2} y - 4x {y}^{2} - 8 {x}^{2} y + 2x = \boxed{ \bold{2x - 4x {y}^{2}}} .$

$c) \: - 2 {m}^{2} {n}^{3} (4m {n}^{2} - 8 {m}^{2} n) - (4 {m}^{2} {n}^{2} ) {}^{2} = - 8 {m}^{3} {n}^{5} + 16 {m}^{4} {n}^{4} - 16 {m}^{4} {n}^{4} = \boxed{ \bold{ - 8 {m}^{3} {n}^{5}}} .$