Common Algebra Mistakes
Fragment: Factoring

The Mistake Fragment

Find the algebra mistake:

mistake

(Roll the mouse over the algebra to see a hint in red)


The Correction

correction

(Roll the mouse over the area above to see the correction in blue)


An Explanation

The expression cannot be simplified by multiplying the coefficients of y2; instead the coefficients must be added, since we must factor out the common y2 from the sum. (Factoring in this way is the reverse of distributing multiplication over addition.)

Home Page | Common Algebra Mistakes | Privacy Policy