(3a+2b)^2-(3a-2b)^2.
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(3a+2b)^2-(3a-2b)^2.
(2a-1)^2(2a+1)^2
=[(2a-1)(2a+1)]^2
=(4a^2-1)^2
=16a^4-8a^2+1
(3a-2b)^2-(3a+2b)^2
=[(3a-2b)-(3a+2b)][(3a-2b)+(3a+2b)]
=(3a-2b-3a-2b)(3a-2b+3a+2b)
=-4b*6a
=-24ab
(x-2y+4)(x+2y-4)
=[x-(2y-4)][x+(2y-4) ]
=x^2-(2y-4)^2
=x^2-4y^2+16y-16
2(x+1)^2-1/2(x+2)(x-2)
=2x^2+4x+2-1/2(x^2-4)
=2x^2+4x+2-x^2/2+2
=3x^2/2+4x+4
=[(2a-1)(2a+1)]^2
=(4a^2-1)^2
=16a^4-8a^2+1
(3a-2b)^2-(3a+2b)^2
=[(3a-2b)-(3a+2b)][(3a-2b)+(3a+2b)]
=(3a-2b-3a-2b)(3a-2b+3a+2b)
=-4b*6a
=-24ab
(x-2y+4)(x+2y-4)
=[x-(2y-4)][x+(2y-4) ]
=x^2-(2y-4)^2
=x^2-4y^2+16y-16
2(x+1)^2-1/2(x+2)(x-2)
=2x^2+4x+2-1/2(x^2-4)
=2x^2+4x+2-x^2/2+2
=3x^2/2+4x+4
A=B+B+B+B+B+B+B+B+B+B+B+B+B+B+B A-B×3=C C+2×7+2=1
1.(a-b)^2(b-a)^3(a-b)^-4
3a+2b用a+b,a-b表示
因式分解(a-b)^2*(a+b)-(a-b)^3
a-b\a+b=1\2时,求代数式a+b\3(a-b) - a-b\2(a+b)
(-a+2b)+(2a-3b)
(a-2b)(a+3b)等于
b-a+3(a-b)^2 因式分解
化简 |a+b|-|3a-2b|
化简 (a+b)²+2a(a-1/2b)-3(a-b)(a+b)
a+(a+b)+(a+2b)+(a+3b)+...+(a+99b)=
a+(a+b)+(a+2b)+(a+3b)+.+(a+99b)等于几?