I need help solving this expression: ((x + 7) (x -4 )) / ((x - 7) (x - 4)) these types of expressions confuse me.
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If you write the expression as $\displaystyle \dfrac{(x+7)(x-4)}{(x-7)(x-4)}$ can you see what you may be able to get 'rid of' from the expression? Something similar from top and bottom?
Originally Posted by Ian1779 If you write the expression as $\displaystyle \dfrac{(x+7)(x-4)}{(x-7)(x-4)}$ can you see what you may be able to get 'rid of' from the expression? Something similar from top and bottom? the (x - 4)
so these are eliminated giving you now $\displaystyle \dfrac{(x+7)}{(x-7)}$ Do you see how that works?
Originally Posted by Ian1779 so these are eliminated giving you now $\displaystyle \dfrac{(x+7)}{(x-7)}$ Do you see how that works? Yes, thank you very much.