Question 1024843
.
Factor the polynomial below if possible:
-16+49h squared 
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<pre>
{{{-16 + 49h^2}}} = {{{49h^2 - 16}}} = {{{(7h)^2 - 4^2}}} = (7h-4)*(7h+4),

if you know this formula {{{a^2 - b^2}}} = (a+b)*(a-b).
</pre>