(3b)^2= 2.—(ab)^2 3.(-4a^2)^3 4.(y^2z^3)^3 5.(xy^3n)^2+(xy^6)^n 6.(-3x^3)^2-[(2x)^2]^3
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(3b)^2= 2.—(ab)^2 3.(-4a^2)^3 4.(y^2z^3)^3 5.(xy^3n)^2+(xy^6)^n 6.(-3x^3)^2-[(2x)^2]^3
(3b)^2= 2.—(ab)^2 3.(-4a^2)^3 4.(y^2z^3)^3 5.(xy^3n)^2+(xy^6)^n 6.(-3x^3)^2-[(2x)^2]^3
(3b)^2= 2.—(ab)^2 3.(-4a^2)^3 4.(y^2z^3)^3 5.(xy^3n)^2+(xy^6)^n 6.(-3x^3)^2-[(2x)^2]^3
(3b)^2 = 9b^2
-(ab)^2 = -a^2b^2
(-4a^2)^3 = -64a^6
(y^2z^3)^3 = y^6z^9
(xy^(3n))^2+(xy^6)^n = x^2y^(6n) + x^ny^(6n)
(-3x^3)^2-[(2x)^2]^3 = 9x^6 - 8x^6 = x^6
ab(a^2b^5-ab^3+b),其中ab^2=-3.
3ab+b^2+( )=4ab-b^2.(括号里填一个数)
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
(a+ab)-[(ab-2b)-a]-(-9ab),其中a+b=-7,ab=3.
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2ab+b^2+什么 =3ab-b^2
a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()
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2ab+b²+( )=3ab-b²
2ab+b²+ =3ab-b²
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