SOLUTION: When asked to solve the equation (x + 3)(2x - 1) = 5 a student proceeded as
follows:
x+3=5 or 2x-1=5
x=2 or x=3
Describe, in your own words, what this student did
Algebra ->
Polynomials-and-rational-expressions
-> SOLUTION: When asked to solve the equation (x + 3)(2x - 1) = 5 a student proceeded as
follows:
x+3=5 or 2x-1=5
x=2 or x=3
Describe, in your own words, what this student did
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Question 359693: When asked to solve the equation (x + 3)(2x - 1) = 5 a student proceeded as
follows:
x+3=5 or 2x-1=5
x=2 or x=3
Describe, in your own words, what this student did wrong and what he/she should
have done.
You can put this solution on YOUR website! FOIL the left side.
Then subtract 5 from both sides.
Then either factor the remaining quadratic equation or use the quadratic formula to get the two solutions.
