1.根号1.44减根号1.212.根号145的平方减24的平方3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²4.(x/4+3y)²-(x/4-3y)²5.9根号3减7根号12加5根号486.(根号6减2根号15)乘以根号3减6根号1/2

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1.根号1.44减根号1.212.根号145的平方减24的平方3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²4.(x/4+3y)²-(x/4-3y)²5.9根号3减7根号12加5根号486.(根号6减2根号15)乘以根号3减6根号1/2
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1.根号1.44减根号1.212.根号145的平方减24的平方3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²4.(x/4+3y)²-(x/4-3y)²5.9根号3减7根号12加5根号486.(根号6减2根号15)乘以根号3减6根号1/2
1.根号1.44减根号1.21
2.根号145的平方减24的平方
3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²
4.(x/4+3y)²-(x/4-3y)²
5.9根号3减7根号12加5根号48
6.(根号6减2根号15)乘以根号3减6根号1/2
7.根号24加根号216 分之 根号6 加5
分解因式:
1.a(x-y)+(x-y)(x+y)
2.a²-b²+2(a+b)
3.a²-b²+2ab-c²
4.x²-2xy+y²-9

1.根号1.44减根号1.212.根号145的平方减24的平方3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²4.(x/4+3y)²-(x/4-3y)²5.9根号3减7根号12加5根号486.(根号6减2根号15)乘以根号3减6根号1/2
1.根号1.44减根号1.21=1.2-1.1=0.1
2.根号145的平方减24的平方=143
3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²
=3/2 a^7 b
4.(x/4+3y)²-(x/4-3y)²
=(x/4+3y+x/4-3y)(x/4+3y-x/4+3y)
=x/2×6y
=3xy
5.9根号3减7根号12加5根号48
=9根号3-14根号3+20分号3
=15根号3
6.(根号6减2根号15)乘以根号3减6根号1/2
=(根号6-2根号15)(根号3-3根号2)
=3根号2-6根号5-6根号3+6根号30
7.根号24加根号216 分之 根号6 加5
=(2根号6+6根号6)分之(根号6+5)
=48分之(6+5根号6)
分解因式:
1.a(x-y)+(x-y)(x+y)
=(x-y)(a+x+y)
2.a²-b²+2(a+b)
=(a-b)(a+b)+2(a+b)
=(a+b)(a-b+2)
3.a²-b²+2ab-c²
=(a-b)²-c²
=(a-b+c)(a-b-c)
4.x²-2xy+y²-9
=(x-y)²-9
=(x-y+3)(x-y-3)

1.
0.1

1.根号1.44减根号1.21=0.1

计算器啊!

1.根号1.44减根号1.21
=1.2-1.1
=0.1
2.根号145的平方减24的平方
=根号(145+24)(145-24)
=根号169×121
=根号169×根号121
=13×11
=143
3.(2/3a2b)3÷(1/3ab2)2×3/4a3b2
=8/27a^6b^3÷1/9a^2b^4×3/4a^...

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1.根号1.44减根号1.21
=1.2-1.1
=0.1
2.根号145的平方减24的平方
=根号(145+24)(145-24)
=根号169×121
=根号169×根号121
=13×11
=143
3.(2/3a2b)3÷(1/3ab2)2×3/4a3b2
=8/27a^6b^3÷1/9a^2b^4×3/4a^2b^2
=2a^6b
4.(x/4+3y)2-(x/4-3y)2
=(x/4+3y+x/4-3y)(x/4+3y-x/4+3y)
=(x/2)(6y)
=3xy
5.9根号3-7根号12+5根号48
=9根号3-14根号3+20根号3
=15根号3
6.(根号6-2根号15)×根号3-6根号1/2
=3根号2-6根号5-3根号2
=-6根号5
7.根号24+根号216 分之 根号6 +5
=2根号6+6根号6分之根号6+5
=2根号6+1/6+5
1.a(x-y)+(x-y)(x+y)
=(x-y)(x+y+a)
2.a2-b2+2(a+b)
=(a+b)(a-b)+2(a+b)
=(a+b)(a-b+2)
3.a2+b2+2ab-c2 /这里是加号吧,要不不好分解啊/
=(a+b)2-c2
=(a+b+c)(a+b-c)
4.x2-2xy+y2-9
=(x-y)2-9
=(x-y+3)(x-y-3)
欢迎提问

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1.根号1.44减根号1.21=1.2-1.1=0.1
2.根号145的平方减24的平方=根号(145+24)(145-24)=根号169x121=13x11=143
3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²=4/27a^6b^3x9/(a^2b^4)x3/4a^3b^2=a^7b
4.(x/4+...

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1.根号1.44减根号1.21=1.2-1.1=0.1
2.根号145的平方减24的平方=根号(145+24)(145-24)=根号169x121=13x11=143
3.(2/3a²b)³÷(1/3ab²)²×3/4a³b²=4/27a^6b^3x9/(a^2b^4)x3/4a^3b^2=a^7b
4.(x/4+3y)²-(x/4-3y)²=(x/4+3y+x/4-3y)(x/4+3y-x/4+3y)=x/2*6y=3xy
5.9根号3减7根号12加5根号48=9根号3-14根号3+20根号3=15根号3
6.(根号6减2根号15)乘以根号3减6根号1/2=(根号6-2根号15)x根号3-6根号1/2=3根号2-6根号5-3根号2=-6根号5
7.根号24加根号216 分之 根号6 加5=2根号6+1/6+36分之5根号6=1/6+36分之77根号6
分解因式:
1.a(x-y)+(x-y)(x+y)
=(x-y)(a+x+y)
2.a²-b²+2(a+b)
=(a+b)(a-b)+2(a+b)
=(a+b)(a-b+2)
3.a²+b²+2ab-c²
=(a+b)²-c²
=(a+b+c)(a+b-c)
4.x²-2xy+y²-9
=(x-y)²-3²
=(x-y+3)(x-y-3)

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1.√1.44=1.2 √1.21=1.1 1.2-1.1=0.1
2.√145的平方还是145 24的平方是576 145-576=-431
若是√(145²-24²)=√(145-24)(145+24)=√121*√169=13*11=143
3.2*a的7次方*b
4.只...

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1.√1.44=1.2 √1.21=1.1 1.2-1.1=0.1
2.√145的平方还是145 24的平方是576 145-576=-431
若是√(145²-24²)=√(145-24)(145+24)=√121*√169=13*11=143
3.2*a的7次方*b
4.只要让中间项相加 等于3xy
5.7√12=14√3 5√48=20√3 原式=(9-14+20)√3=15√3
6.-6√5 直接把括号拆开来,然后第一项和最后一项可以约去
7.分母先化简得8√6 (√6+5)/8√6=1/8+5√6/48
分解因式
1.(x+y+a)*(x-y)
2.(a-b)²
3.(a-b+c)*(a-b-c)
4.(x-y+3)*(x-y-3)

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