12.当a≤0时,化简:√3a²=___ 当m<3时,√(m-3)²=___15.在实数范围内分解因式:x²-5=____ a²+2√3a+3=____16.最简二次根式√4a+3b与b+1√2a-b+6是同类二次根式,则a=___,b=___17.已知√5的整数部分
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![12.当a≤0时,化简:√3a²=___ 当m<3时,√(m-3)²=___15.在实数范围内分解因式:x²-5=____ a²+2√3a+3=____16.最简二次根式√4a+3b与b+1√2a-b+6是同类二次根式,则a=___,b=___17.已知√5的整数部分](/uploads/image/z/14117687-71-7.jpg?t=12.%E5%BD%93a%E2%89%A40%E6%97%B6%2C%E5%8C%96%E7%AE%80%EF%BC%9A%E2%88%9A3a%26%23178%3B%3D___+%E5%BD%93m%EF%BC%9C3%E6%97%B6%2C%E2%88%9A%28m-3%29%26%23178%3B%3D___15.%E5%9C%A8%E5%AE%9E%E6%95%B0%E8%8C%83%E5%9B%B4%E5%86%85%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9Ax%26%23178%3B-5%3D____+a%26%23178%3B%2B2%E2%88%9A3a%2B3%3D____16.%E6%9C%80%E7%AE%80%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%E2%88%9A4a%2B3b%E4%B8%8Eb%2B1%E2%88%9A2a-b%2B6%E6%98%AF%E5%90%8C%E7%B1%BB%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%2C%E5%88%99a%3D___%2Cb%3D___17.%E5%B7%B2%E7%9F%A5%E2%88%9A5%E7%9A%84%E6%95%B4%E6%95%B0%E9%83%A8%E5%88%86)
12.当a≤0时,化简:√3a²=___ 当m<3时,√(m-3)²=___15.在实数范围内分解因式:x²-5=____ a²+2√3a+3=____16.最简二次根式√4a+3b与b+1√2a-b+6是同类二次根式,则a=___,b=___17.已知√5的整数部分
12.当a≤0时,化简:√3a²=___ 当m<3时,√(m-3)²=___
15.在实数范围内分解因式:x²-5=____ a²+2√3a+3=____
16.最简二次根式√4a+3b与b+1√2a-b+6是同类二次根式,则a=___,b=___
17.已知√5的整数部分是a,小部分是b,则a-1/b的值为_____
18.已知x=1/√5-2,则x-1/x的值等于_____
19.若√m-3+(n+1)²=0,则m+n的值为______
20.已知√8/3=2√2/3,√27/8=3√3/8,√64/15=4√4/15,.请你用含n的式子将其中蕴含的规律表示出来:______________
{16题中的b+1是这个意思(b+1)b+1在根号的括号中间,没认真听,} (√)
(√是根号的意思)求解答,人太懒不肯动脑筋
12.当a≤0时,化简:√3a²=___ 当m<3时,√(m-3)²=___15.在实数范围内分解因式:x²-5=____ a²+2√3a+3=____16.最简二次根式√4a+3b与b+1√2a-b+6是同类二次根式,则a=___,b=___17.已知√5的整数部分
12.-√3a 3-m
15.(x+√5)(x-√5) ( a+√3)^2
16 还是没有理解
17 √5+2
18 4
19 2
20 (n+1)^(3/2)/[(n+1)^2-1]