9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式
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9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b
9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式
9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式
9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)分解因式
平方差
原式=[3(2a+3b)]²-[2(3a-2b)]²
=(6a+9b)²-(6a-4b)²
=(6a+9b+6a-4b)(6a+9b-6a+4b)
=13b(12a+5b)
9(2a+3b)(2a+3b)-4(3a-2b)(3a-2b)
=[3(2a+3b)+2(3a-2b)][3(2a+3b)-2(3a-2b)]
=13b*(12a+5b)
原式=9(2a+3b)^2-4(9a^2-4b^2)
=9(4a^2+12ab+9b^2)-36a^2+16b^2
=36a^2+108ab+81b^2-36a^2+16b^2
=97b^2+108ab
2(a+b)-[4(a+b)-3(a+b)]一[5(a-b)+(a-b)]过程
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
1/4(a-b)^2+3(a-b)(a+b)+9(a+b)^2
9(a-b)(a+b)-3(a-b)^2
2a(a-b)+4a(2a+3b)
(a^2+1)(-4a^2+1)+a^4-1 3a(a-b)(a+b)-6(b-a)^2a^2-9(a-b)^2= 3a(a-b)(a+b)-6(b-a)^2=
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/b]
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/a]
化简:[2/3a - 2/(a+b) * (a+b/3a - a - b)] / (a-b)/a
计算:(4a-b)^2-[8a*(a-b)-(3a-b)*(3a+b)]
等式:(a+b)^0=1 (a+b)^1=a+b (a+b)^2(a+b)^0=1(a+b)^1=a+b(a+b)^2=a^2+2ab+b^2(a+b)^3=a^3+3a^2b+3ab^2+b^3问:(a+b)^4=?(a+b)^5=?``````` (a+b)^9=?
(2a-3b)[(a+b)-b(a-3b)]
(a-2b)(a^2+2ab+4b^2)-a(a+3b)(a-3b),其中a=-1/9,b=1求a,b
a+a-a+2a-3a-2b+3b-5b+3b-4b-5b
2b根号a/b+3/a根号a立方b-(4a根号b/a+根号9ab)
a^2(a-b)+b^2(b-a) 因式分解 (a-b)^3-(a-b)^2 因式分解
2(a+3b)²-8(a+b)(a-b)-(a+3b)(a-b)