Объяснение:
(a-3)(a+4)=a²+4a-3a-12=a²+a-12
(2y+1)(5y-6)=10y²-12y+5y-6=10y²-7y-6
(x+3)(x-7)=x²-7x+3x-21=x²-4x-21
(a-4b)(a²+3ab-6b²)=a³+3a²b-6ab²-4a²b-12ab²+24b³=a³+24b³-a²b-18ab²
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Объяснение:
(a-3)(a+4)=a²+4a-3a-12=a²+a-12
(2y+1)(5y-6)=10y²-12y+5y-6=10y²-7y-6
(x+3)(x-7)=x²-7x+3x-21=x²-4x-21
(a-4b)(a²+3ab-6b²)=a³+3a²b-6ab²-4a²b-12ab²+24b³=a³+24b³-a²b-18ab²