Question

Помогите c²-p². (5a-1)² .a³-64 . 16x²-72xy+81y².
y²-81x²

Answer 1

Ответ:

${c}^{2} - {p}^{2} = (c - p)(c + p)$

${(5a - 1)}^{2} = 25 {a}^{2} - 10a + 1$

${a}^{3} - 64 = (a - 4)( {a}^{2} + 4a + 16)$

$16 {x}^{2} - 72xy + 81 {y}^{2} = {(4x - 9y)}^{2}$

${y}^{2} - 81 {x}^{2} = (y - 9x)(y + 9x)$