Examples with solutions for Square of Difference: Using fractions

Exercise #1

(1xx)2= (\frac{1}{x}-x)^2=

Video Solution

Answer

x42x2+1x2 \frac{x^4-2x^2+1}{x^2}

Exercise #2

2x24xy+2y2+(xy)2xy= \frac{\sqrt{2x^2-4xy+2y^2+(x-y)^2}}{x-y}=

Video Solution

Answer

3 \sqrt{3}

Exercise #3

Consider the following relationship between x and y:

x4y+yx1=0 \frac{x}{4y}+\frac{y}{x}-1=0

Choose the short multiplication formula that represents this equation.

Video Solution

Answer

(x2y)2=0 (x-2y)^2=0

Exercise #4

x2+y2(xy)2=3,(xy)2=1 \frac{x^2+y^2}{(x-y)^2}=3,(x-y)^2=1

What is the product of x and y?

Video Solution

Answer

xy=1 xy=1

Exercise #5

(1x12)2(1x13)2=94 \frac{(\frac{1}{x}-\frac{1}{2})^2}{(\frac{1}{x}-\frac{1}{3})^2}=\frac{9}{4}

Find X

Video Solution

Answer

2.5

Exercise #6

Ax+Bx2=(2x3)2xc \frac{A}{x}+\frac{Bx}{2}=\frac{(2x-3)^2}{x}-c

Calculate the values of A, B, and C.

Video Solution

Answer

A=9,B=8,C=12 A=9,B=8,C=-12

Exercise #7

Solve the following equation:

1(x2)2+1x2=1 \frac{1}{(x-2)^2}+\frac{1}{x-2}=1

Video Solution

Answer

12[5±5] \frac{1}{2}[5\pm\sqrt{5}]

Exercise #8

Solve the following equation:

x3+1(x1)2=x+4 \frac{x^3+1}{(x-1)^2}=x+4

Video Solution

Answer

x=3,12 x=3,\frac{1}{2}

Exercise #9

Solve the following equation:

(2x1)2x2+(x2)22x1=4.5x \frac{(2x-1)^2}{x-2}+\frac{(x-2)^2}{2x-1}=4.5x

Video Solution

Answer

1±3 -1\pm\sqrt{3}