Question

a⁴-16b⁴=(a-2b)(a+2b)(a²+4b²) докажите тождество

Answer 1

$tt DoKa3aTb:;a^4 - 16b^4 = (a - 2b)(a + 2b)(a^2 + 4b^2).\\boxed{begin{begin{array}{c}tt Pa3HocTb;;KBaDpaToB&bf(a - b)(a + b) = a^2 - b^2end{array}}}\\a^4 - 16b^4 = underline{(a - 2b)(a + 2b)}(a^2 + 4b^2);\a^4 - 16b^4 = underline{(a^2 - 4b^2)(a^2 + 4b^2)};\a^4 - 16b^4 = a^4 - 16b^4.\ DoKa3aHo.$

Answer 2

Большое спасибо!