factorise 9 x cube minus 27 x square - 100 x + 300 if 3 X + 10 is one of the factors
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Factorization of polynomials
- A polynomial can be written as the product of its factors having a degree less than or equal to the original polynomial.
- The process of factoring is called factorization of polynomials.
Let us first solve it using GCF (greatest common factor)
- To solve using GCF we first find factors common to all terms.
- That is, if ab+bc is given, clearly b is common here.
Therefore, we can write ab+bc=b(a+c) [ reverse distributive law ]
Given,
(Taking out common factors)
- - - - - (1)
Using the formula on
- - - - - - - (2)
Substituting (2) into (1), we get,
Given (3x+10) is a factor of
∴ The other factors are (3x-10)(x-3)
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