几道二次根式的计算题!√(1/2x)^2+10/9x^2√a^4mb^2n+1(a、b为正数)√(4a^5+8a^4)(a^2+3a+2)(a>=0)

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几道二次根式的计算题!√(1/2x)^2+10/9x^2√a^4mb^2n+1(a、b为正数)√(4a^5+8a^4)(a^2+3a+2)(a>=0)几道二次根式的计算题!√(1/2x)^2+10/9

几道二次根式的计算题!√(1/2x)^2+10/9x^2√a^4mb^2n+1(a、b为正数)√(4a^5+8a^4)(a^2+3a+2)(a>=0)
几道二次根式的计算题!
√(1/2x)^2+10/9x^2
√a^4mb^2n+1(a、b为正数)
√(4a^5+8a^4)(a^2+3a+2)(a>=0)

几道二次根式的计算题!√(1/2x)^2+10/9x^2√a^4mb^2n+1(a、b为正数)√(4a^5+8a^4)(a^2+3a+2)(a>=0)
√[(1/2x)^2+10/9x^2]
=√(x^2/4+10x^2/9)
=√(9x^2/36+40x^2/36)
=√(49x^2/36)
=7|x|/6;
[√(a^4mb^2n)]+1(a、b为正数)
=a^2mb^n+1;
√[(4a^5+8a^4)(a^2+3a+2)](a>=0)
=√[4a^4(a+2)(a+2)(a+1)]
=√[(2a^2)^2(a+2)^2(a+1)]
=2a^2(a+2)√(a+1).

√(1/2x)^2+10/9x^2
=√[1/(4x^2)+10/(9x^2)]
=√49/36x^2
若x>0,=7/(6x)
若x<0,=-7/(6x)
√a^4mb^2n+1
=√(a^2mb^n)^2+1
=a^2mb^n+1
√(4a^5+8a^4)(a^2+3a+2)
=√[4a^4(a+2)][(a+2)(a+1)]
=√[4a^4(a+2)^2(a+1)]
=2a^2(a+2)√(a+1)