Question

Simplify the expression

Answer 1

[ Answer ]

$\boxed{\bold{\frac{W \ - \ 3}{W \ - \ 7} }}$

[ Explanation ]

• Solve: $\boxed{\bold{\frac{w^2-9}{w^2-4w-21}}}$

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• Factor $w^{2}$ - 9: (w + 3)(w - 3)

$\bold{\frac{(w \ + \ 3)(w \ - \ 3)}{w^{2} \ - \ 4w \ - \ 21}}$

• Factor $w^{2}$ - 4w - 21: (w + 3)(w - 7)

$\bold{\frac{(w \ + \ 3)(w \ - \ 3)}{(w \ + \ 3)(w \ - \ 7)}}$

• Cancel The Common Factor w + 3

$\bold{\frac{w \ - \ 3}{w \ - \ 7}}$

$\boxed{\bold{[] \ Eclipsed \ []}}$