Algebra
posted by JT .
Why are these algebraic expressions used and explain the logical error: Since a = b, then a2 = a * b
Subtract b2 from both sides a2 – b2 = a * b – b2
Factor both sides: ( a + b )( a – b ) = b(a – b )
Divide both sides by ( a – b)
( a + b ) = b
Since a = b,

Algebra 
Reiny
error:
since ab = 0, you are dividing by zero !!!!
Respond to this Question
Similar Questions

Algerbra 1
1/3x + 5/6 = 2/9x  1/3 How do I solve this to get the answer? 
math
can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference … 
HELP!!!!!
What is the first step in solving the problem, 3x8/12=9? 
PLEASE HELP ME!!!
What is the first step in solving the problem, 3x8/12=9? 
help please
What is the first step in solving the problem, 3x8/12=9? 
Algebra
explain the logical error Square both sides to get a2 = b2 
ALgebra
Indicate and explain the logical error in the following set of algebraic expressions Let a=b square both sides to get a^2=b^2 a^2=b*b Since a=b, then a^2=a*b Subtract b^2 from both sides a^2b^2=a*bb^2 Factor both sides: (a+b)(ab)=b(ab) … 
Algebra
Select all the statements that can be used as steps to solve the equation 6[4(2x−1)]=80−8. Subtract 8 from 80. Combine 80 and 6. Multiply 2x and 1 by 4. Subtract 1 from both sides of the equation. Add 4 to both sides of … 
ALGEBRA
Select all the statements that can be used as steps to solve the equation 6[4(2x−1)]=80−8. Subtract 8 from 80. Combine 80 and 6. Multiply 2x and 1 by 4. Subtract 1 from both sides of the equation. Add 4 to both sides of … 
Algebra
Which of the following describes a correct method for solving the equation below?