Question Simplify the algebraic expression \dfrac{a^2}{a-1} -a-1 Collected in the board: Calculate algebraic expressions Steven Zheng posted 2 years ago

Answer \dfrac{a^2}{a-1} -a-1 \dfrac{a^2-(a+1)(a-1)}{a-1} =\dfrac{a^2-a^2+1}{a-1} =\dfrac{1}{a-1} Steven Zheng posted 1 year ago