СРОЧНО!ДАЮ 20 баллов Разложите на множители:
1)(4a-7b)^2-49a^2=
2)(7-2x^2)^2-(3x^2+2)^2=
3)(49^n-16^n)=
1)(4a-7b)^2-49a^2=
2)(7-2x^2)^2-(3x^2+2)^2=
3)(49^n-16^n)=
More Questions From This User See All
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
=(4а-7b)²-(7a)²=(4a-7b-7a)(4a-7b+7a)=(-3a-7b)(11a-7b)=(3a+7b)(7b-11a)
=(7-2x²-3x²-2)(7-2x²+3x²+2)=(5-5x²)(9+x²)=5(1-x²)(x²+9)
=(7^n)²-(4^n)²=(7^n-4^n)(7^n+4^n)
7^ n - 7 в степени n