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how do i find the factors in polynomials

I have a worksheet on using distributive property it says to factor each polynomial but i dont know how.
here is one of the polynomials 7x+49
How do i factor it?

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Francisco E. | Francisco; Civil Engineering, Math., Science, Spanish, Computers.Francisco; Civil Engineering, Math., Sci...
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Is to find a common factor for all the terms of the polynomial and take it out multiplying as a factor for the ENTIRE polynomial.
In this case the common factor will be 7 so the factored polynomial will be 7*(X + 7). if you multiply the terms inside the brackets times the common factor you will get again the original equation.