Review question

Can we solve $\sqrt{3-3x} - \sqrt{2-x} = 1$? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R7485

Suggestion

1. Find all pairs of values of $x$ and $y$ for which $\begin{equation*} \frac{3x+y+1}{8} = \frac{x-y}{5} = \frac{x^2 - y^2}{5}. \end{equation*}$

I have two equations here with two unknowns. So I seem to be dealing with simultaneous equations, though they have been disguised a little.

1. Solve the equation $\begin{equation*} \sqrt{3-3x} - \sqrt{2-x} = 1. \end{equation*}$

I really don’t like all these square roots. Perhaps squaring will help?