Ответ:
(2x-1)²+(7+2x)(7-2x)=2²x²-2×2x×1+1²+(7+2x)=4x²-4x+1+7+2x=4x²-6x+8
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
(2x-1)²+(7+2x)(7-2x)=2²x²-2×2x×1+1²+(7+2x)=4x²-4x+1+7+2x=4x²-6x+8