(1)(3x-2y)^2=9x^2+(?)-(?)(2)(-3a^2-b)^2=(?)+b^2+(?)(3)(?+2c)^2=25t^2+4c^2+(?)(4)(?+1/2a)^2(4)(?+1/2a)^2=?+1/4a^2-ab
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 19:27:55
![(1)(3x-2y)^2=9x^2+(?)-(?)(2)(-3a^2-b)^2=(?)+b^2+(?)(3)(?+2c)^2=25t^2+4c^2+(?)(4)(?+1/2a)^2(4)(?+1/2a)^2=?+1/4a^2-ab](/uploads/image/z/1805784-24-4.jpg?t=%EF%BC%881%EF%BC%89%EF%BC%883x-2y%29%5E2%3D9x%5E2%2B%28%3F%29-%28%3F%29%282%29%28-3a%5E2-b%29%5E2%3D%28%3F%29%2Bb%5E2%2B%28%3F%29%283%29%28%3F%2B2c%29%5E2%3D25t%5E2%2B4c%5E2%2B%28%3F%29%284%29%28%3F%2B1%2F2a%29%5E2%284%29%28%3F%2B1%2F2a%29%5E2%3D%3F%2B1%2F4a%5E2-ab)
(1)(3x-2y)^2=9x^2+(?)-(?)(2)(-3a^2-b)^2=(?)+b^2+(?)(3)(?+2c)^2=25t^2+4c^2+(?)(4)(?+1/2a)^2(4)(?+1/2a)^2=?+1/4a^2-ab
(1)(3x-2y)^2=9x^2+(?)-(?)(2)(-3a^2-b)^2=(?)+b^2+(?)(3)(?+2c)^2=25t^2+4c^2+(?)(4)(?+1/2a)^2
(4)(?+1/2a)^2=?+1/4a^2-ab
(1)(3x-2y)^2=9x^2+(?)-(?)(2)(-3a^2-b)^2=(?)+b^2+(?)(3)(?+2c)^2=25t^2+4c^2+(?)(4)(?+1/2a)^2(4)(?+1/2a)^2=?+1/4a^2-ab
(1)(3x-2y)^2=9x^2+(?)-(?)
(3x-2y)^2=9x^2+4y^2-12xy
(2)(-3a^2-b)^2=(?)+b^2+(?)
(-3a^2-b)^2=9a^4+b^2+6a^2b
(3)(?+2c)^2=25t^2+4c^2+(?)
(5t+2c)^2=25t^2+4c^2+20tc
(4)(?+1/2a)^2=?+1/4a^2-ab
(-b+1/2a)^2=b^2+1/4a^2-ab