Question

преобразуйте в многочлен:
(4p+9)(4p-9)
(6m+3b)(6m-3b)

Answer 1

$(4p + 9)(4p - 9) \\ 16p {}^{2} - 36p + 36p - 81\\ 16p {}^{2} - 81 \\ (6m + 3b)(6m - 3b) \\ 36m {}^{2} - 18bm + 18m - 9b {}^{2} \\ 36m {}^{2} - 9b {}^{2}$

Answer 2

(4р+9)(4р-9) = (4р)²-9²=16р²-81
(6m+3b)(6m-3b) = (6m)²-(3b)²=36m²-9b²