(5a-3b)(5a+3b)(25a^2-9b^2)
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(5a-3b)(5a+3b)(25a^2-9b^2)
=(25a²-9b²)²
=625a^4-450a²b²+81b^4
相关问题
① (-3a²-5b²)( )=25b⁴-9a⁴
紧急!1.(a^2+3)(a-2)-a(a^2-2a-2)=?2.(3/5a^5b^3+9/5a^7b^4-9/2a^5
2△3= (2+3)/3 2/3△2/5= (2/3+2/5 )/2/5 a△b=(a+b)/b 计算9/10△3/5
2(2a²+9b)+3(-5a²-4b)
0 a a+b 2a+b 2a+2b 3a+2b 3a+3b 4a+3b 4a+4b 5a+4b 5a+5b …… 求一
求证:a^5+b^5>a^2b^3+a^3b^2
计算,使结果中只含正整数指数幂:(a-3b-2)-2•(a-1b3)-3=a9b5a9b5.
(-ab^2)^3(-9a^3b)÷(-3a^3b^5)
已知a,b满足a^3-3a^2+5a=1,b^3-3b^2+5b=5,则a+b=?
(3a+2b)(6a-5b)(2b-3a)(5a+6b)