Question

These algebraic expressions are not equivalent. Explain

why they are not equivalent.
+ 8x – x2 - 6x
2x² – 2x
x2-1 + 8x

Answer 1

If you simplify the first expression, you will not get the second expression. In the first expression, the x2 terms have coefficients of 1 and –1 and, when combined, the result is 0. Also, the x terms have coefficients of 8 and –6 and, when combined, the result is 2. Finally, the constant from the first expression is not in the second expression.

Explanation: