(m^2+3m)^2-8(m^2+3m)-20
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(m^2+3m)^2-8(m^2+3m)-20(m^2+3m)^2-8(m^2+3m)-20(m^2+3m)^2-8(m^2+3m)-20你是要因式分解吧?以下就是因式分解,(m²+3m)&
(m^2+3m)^2-8(m^2+3m)-20
(m^2+3m)^2-8(m^2+3m)-20
(m^2+3m)^2-8(m^2+3m)-20
你是要因式分解吧?以下就是因式分解,
(m²+3m)²-8(m²+3m)-20
=(m²+3m)²-8(m²+3m)+16-36
=(m²+3m-4)²-36
=(m²+3m-4)²-6²
=(m²+3m-4-6)(m²+3m-4+6)
=(m²+3m-10)(m²+3m+2)
=(m+5)(m-2)(m+2)(m+1)
够详细了吧?
楼上是错的,m²+3m-10应该是等于(m+5)(m-2)
您好:
(m^2+3m)^2-8(m^2+3m)-20
=(m²+3m-10)(m²+3m+2)
=(m-5)(m+2)(m+2)(m+1)
=(m-5)(m+1)(m+2)²
不明白,可以追问
如有帮助,记得采纳,谢谢
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您好:
(m^2+3m)^2-8(m^2+3m)-20
=(m²+3m-10)(m²+3m+2)
=(m-5)(m+2)(m+2)(m+1)
=(m-5)(m+1)(m+2)²
不明白,可以追问
如有帮助,记得采纳,谢谢
祝学习进步!
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