Phép nhân và phép chia các đa thức
Các câu hỏi tương tự
Tìm x, biết:
a) (2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4)
b) (8x-3)(3x+2)-(4x+7)(x+4)=(2x+1)(5x-1)
1. Tìm x biết:
a. ( 8x - 3 ).( 3x + 2 ) - ( 4x + 7 ).( x + 4 ) = ( 2x + 1 ).( 5x - 1 )
b. 4.( x - 1 ).(x + 5 ) - ( x + 2 ).( x + 5 ) = 3.( x - 1 ).( x + 2 )
a) (2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4)
b)(8x-3)(3x+2)-(4x+7)(x+4)=(2x+1)(5x-1)
c)(\(^{x^2}\)-5)(x+2)+5x=2\(^{x^2}\)+17
d)(\(^{x^2}\)-x+1)(x+1)-\(x^3\)+3x=15
Tìm x, biết:
a) \(\left(2x+3\right)\left(x-4\right)+\left(x-5\right)\left(x-2\right)=\left(3x-5\right)\left(x-4\right)\)
b) \(\left(8x-3\right)\left(3x+2\right)-\left(4x+7\right)\left(x+4\right)=\left(2x+1\right)\left(5x-1\right)\)
c) \(\left(3x-5\right)\left(7-5x\right)-\left(5x+2\right)\left(2-3x\right)=4\)
Bài 1 : Rút gọn
A 3(x-1)2-(x+1)2+2(x-3)(x+3)-(2x+3)2-(5-20x)
B 5x(x-7)(x+7)-x(2x-1)2-(x3+4x2-246x)-175
C -2x(3x+2)2+(4x+1)2+2(x3+8x+3x-2)-(5-x)
D (5x-2)2-(6x+1)2+11(x-2)(x+2)-16(3-2x)
E 4x(x+3)-(x-5)2-3(x+1)2+(2x+2)2-(4x+5)
F (2x-3)(x+2)(x-2)-2(x+3)-(x+4)3+(x-3)(x2+3x+9)+9x2+110x
Đọc tiếp
Bài 1 : Rút gọn
A= 3(x-1)2-(x+1)2+2(x-3)(x+3)-(2x+3)2-(5-20x)
B= 5x(x-7)(x+7)-x(2x-1)2-(x3+4x2-246x)-175
C= -2x(3x+2)2+(4x+1)2+2(x3+8x+3x-2)-(5-x)
D= (5x-2)2-(6x+1)2+11(x-2)(x+2)-16(3-2x)
E= 4x(x+3)-(x-5)2-3(x+1)2+(2x+2)2-(4x+5)
F= (2x-3)(x+2)(x-2)-2(x+3)-(x+4)3+(x-3)(x2+3x+9)+9x2+110x
1. Thu gọn:
a) 5x. (x-3) - x. (5x+1)
b) -3x. (x-1) - x. (x+1) + 4x. (x-2)
c) (3x-1). (x-2) + (x-1). (x+1)
d) (4x-3). (2x-5) - (8x-2). (x-1)
2. Tìm x:
a) 3x. (x-3) - x. (3x-2) = 2
b) -2x. (x+1) - 3. (1-x) + 2x2
c) (x-2). (x+2) + (3.x). (x+1) = 0
d) (2x-1). (x+3)- (x-2). (2x+1) = 10
Bài 1: Thực hiện phép tính
a. frac{11x+10}{3x-3}+frac{15x+13}{4-4x}
b. frac{5x+3}{x^2-3x}+frac{9-x}{9-3x}
c. frac{4xy-1}{5x^2y}-frac{2xy-1}{5x^2y}
d. frac{x+8}{x^2-16}-frac{2}{x^2+4x}
e. frac{x^2-49}{2x+1}.frac{3}{7-x}
f. frac{3x^2-2x}{x^2-1}.frac{1-x^4}{left(2-3xright)^3}
g. frac{5xy}{2x-3}:frac{15xy^3}{12-8x}
h. frac{x^2+2x}{3x^2-6x+3}:frac{2x+4}{5x-5}
Đọc tiếp
Bài 1: Thực hiện phép tính
a. \(\frac{11x+10}{3x-3}+\frac{15x+13}{4-4x}\)
b. \(\frac{5x+3}{x^2-3x}+\frac{9-x}{9-3x}\)
c. \(\frac{4xy-1}{5x^2y}-\frac{2xy-1}{5x^2y}\)
d. \(\frac{x+8}{x^2-16}-\frac{2}{x^2+4x}\)
e. \(\frac{x^2-49}{2x+1}.\frac{3}{7-x}\)
f. \(\frac{3x^2-2x}{x^2-1}.\frac{1-x^4}{\left(2-3x\right)^3}\)
g. \(\frac{5xy}{2x-3}:\frac{15xy^3}{12-8x}\)
h. \(\frac{x^2+2x}{3x^2-6x+3}:\frac{2x+4}{5x-5}\)
Thực hiện phép tính phân thức a) 3/2x+6-x-6/2x^2+6x
b)1/xy-x^2-1/y^2-xy
c)1-4x^2/x^2+4x : 2-4x/3x
d)12x/5y^3 . 15y^4/8x^3
e)4x^2/5y^2 : 6x/5y : 2x/3y
f) x^2-4/3x+12 . x+4/2x-4
g) 5x+10/4x-8 . 4-2x/x+2
các bn ưi, giúp mk giải hộ bài này vs, mk đag cần gấp
Bài 1: Áp dụng những hằng đẳng thức để tìm x
a) -(x+3)(x-4)+(x+1)(x-1)=10
b) (2x-1)(x-2)-(x+3)(2x-7)=3
c) (x-5)(4-x)-(x-1)(x+3)=-2x
d) 3(x+7)(x-7)-(x-1)(3x+2)=13
e) 5(x-3)(x-7)-(5x+1)(x-2)=8
f) (3x-4)(x-2)=3x(x-9)-10
g) 5x(x-3)=(x-2)(5x-1)-5
h) 6(x-3)(x-4)-6x(x-2)=4
i) (x-2)(x+3)-(x+4)(x-7)=5-x
k) (4x-5)(x+1)-4(x-1)(x+1)=7
l) (3x-4)(x-2)=3x(x-9)-3