作业帮整式的化简(1)(3a+b)2 (2)(-x+3y)2 (3)[(3a-3\1b)2+2b(a-18\1b)]/3a2
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/11/08 14:07:20
整式的化简
(1)(3a+b)2 (2)(-x+3y)2 (3)[(3a-3\1b)
2+2b(a-18\1b)]/3a2 (4)(-a-b)2 (5)(x2+2\1)2
(6)[(-a3)2+3a3`(-a)-a2`(-a2)2]/3a4
(1)(3a+b)2 (2)(-x+3y)2 (3)[(3a-3\1b)
2+2b(a-18\1b)]/3a2 (4)(-a-b)2 (5)(x2+2\1)2
(6)[(-a3)2+3a3`(-a)-a2`(-a2)2]/3a4
(1)(3a+b)^2
=(9a^2+6ab+b^2
(2)(-x+3y)^2
=(x-3y)^2
=x^2-6xy+9y^2
(3)[(3a-b/3)^2+2b(a-b/18)]/3a^2
=(9a^2-2ab-b^/9+2ab-b^2/9)/3a^2
=9a^2/3a^2
=3
(4)(-a-b)^2
=(a+b)^2
=a^2+2ab+b^2
(5)(x^2+1/2)^2
=x^4+x^2+1/4
(6)[(-a^3)^2+3a^3`(-a)-a^2`(-a^2)^2]/3a^4
=(a^6-3a^4-a^2*a^4)/3a^4
=(a^6-3a^4-a^6)/3a^4
=-3a^4/3a^4
=-1
=(9a^2+6ab+b^2
(2)(-x+3y)^2
=(x-3y)^2
=x^2-6xy+9y^2
(3)[(3a-b/3)^2+2b(a-b/18)]/3a^2
=(9a^2-2ab-b^/9+2ab-b^2/9)/3a^2
=9a^2/3a^2
=3
(4)(-a-b)^2
=(a+b)^2
=a^2+2ab+b^2
(5)(x^2+1/2)^2
=x^4+x^2+1/4
(6)[(-a^3)^2+3a^3`(-a)-a^2`(-a^2)^2]/3a^4
=(a^6-3a^4-a^2*a^4)/3a^4
=(a^6-3a^4-a^6)/3a^4
=-3a^4/3a^4
=-1
整式的化简(1)(3a+b)2 (2)(-x+3y)2 (3)[(3a-3\1b)2+2b(a-18\1b)]/3a2
整式计算(1)3a[(b^2)-3a(b-3a)]+b[(9a^2)-3ab+(b^2)](2)[(4x-1/2·y)(
当a=1/2,b=1/3时 求整式a-(a+b)+(a+2b)-(a+3b)+……-(a+101b)的值
已知|2a-b+1|+(3a+3/2*b)2=0,求代数式(b2/a+b)/(a/a-b-1)/(a-a2/a+b)的值
当a=1,b=-3时,整式3a-｛-2b+[a-（4a-3b）]｝=?
2a-3b/b2-a2 -a+3b/a2-b2 +a+2b/a2-b2
已知：a+b=1,a(a2+2b)+b(-3a+b2)=0.
A=B+B+B+B+B+B+B+B+B+B+B+B+B+B+B A-B×3=C C+2×7+2=1
下列整式中,单项式是（） a.3a+1 b.2x-y c.0.1 d.x+1/2
已知1/a+1/b=2/3,求代数式[a/(a+b)-b/(b-a)-2ab/(a2-b2)除以(1/a-1/b)的值
(3x-y)(3x+y)+y(x+y);(a+1/2b)(a-1/2b)-(3a-2b)(3a+2b)快点,
已知a+1的绝对值与2a+b的绝对值互为相反数,试求整式3(a-b)