Lösung 2.2:3d
Aus Online Mathematik Brückenkurs 1
There are no common factors on the left-hand side which we can take out, so we choose to expand the three terms on the left-hand side
Collecting up terms, the left-hand side becomes
and because \displaystyle 33=3\cdot 11, \displaystyle 9=3\cdot 3 and \displaystyle 4=2\cdot 2, the whole equation can rewritten as
Taking out common factors, we get
and then we see that the equation has the solution \displaystyle x=1/2.
Finally, we substitute \displaystyle x=1/2 into the original equation to check that we have calculated correctly.
