SOLUTION: Factor the polynomial below if possible: -16+49h squared

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Question 1024843: Factor the polynomial below if possible:
-16+49h squared
Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
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Factor the polynomial below if possible:
-16+49h squared
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-16+%2B+49h%5E2 = 49h%5E2+-+16 = %287h%29%5E2+-+4%5E2 = (7h-4)*(7h+4),

if you know this formula a%5E2+-+b%5E2 = (a+b)*(a-b).