因式分解。求过程。
(1)x^6-4y^2;(2)4/25a^2-9/64b^2;(3)9m^2(x-y)+16(y-x)...
(1)x^6-4y^2;(2)4/25a^2-9/64b^2;(3)9m^2(x-y)+16(y-x)
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(1)x^6-4y^2=(x^3-2y)(x^3+2y)
(锋陆握2)4/银庆25a^2-9/64b^2=(2/5a-3/8b)(2/5a+3/8b)
(3)9m^2(悉拿x-y)+16(y-x)=(x-y)(9m^2-16)=(x-y)(3m-4)(3m+4)
(锋陆握2)4/银庆25a^2-9/64b^2=(2/5a-3/8b)(2/5a+3/8b)
(3)9m^2(悉拿x-y)+16(y-x)=(x-y)(9m^2-16)=(x-y)(3m-4)(3m+4)
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(1)游简x^6-4y^2;
=[x³+2y][x³闭磨前-2y]
(2)4/25a^2-9/64b^2;
=[2/5a+3/8b][2/轿清5a-3/8b]
(3)9m^2(x-y)+16(y-x)
=9m²(x-y)-16(x-y)
=(x-y)(9m²-16)
=(x-y)(3m+4)(3m-4)
=[x³+2y][x³闭磨前-2y]
(2)4/25a^2-9/64b^2;
=[2/5a+3/8b][2/轿清5a-3/8b]
(3)9m^2(x-y)+16(y-x)
=9m²(x-y)-16(x-y)
=(x-y)(9m²-16)
=(x-y)(3m+4)(3m-4)
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(1)
x^6-4y^2
=(x^3+2y)(x^3-2y)
(茄培锋2)
4/25a^2-9/64b^2
=(2a/5+3b/8)(2a/5-3b/8)
(3)颤晌
9m^2(x-y)+16(y-x)
=9m²(x-y)-16(x-y)
=(x-y)(9m²中祥-16)
=(x-y)(3m+4)(3m-4)
x^6-4y^2
=(x^3+2y)(x^3-2y)
(茄培锋2)
4/25a^2-9/64b^2
=(2a/5+3b/8)(2a/5-3b/8)
(3)颤晌
9m^2(x-y)+16(y-x)
=9m²(x-y)-16(x-y)
=(x-y)(9m²中祥-16)
=(x-y)(3m+4)(3m-4)
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