Method Instruction Book

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Method Instruction Book

Polynomials factoring? I need help plz?

It is my task and I do not understand. The instructions in my textbook says "factor each polynomial completely 'this is a problem in my book. please explain step by step so you can use the method in my other problems in my homework. thank you very much y ^ 2 +8 and 16 and also this type also 25x ^ 2.9

Factoring involves a bit of thought. for a quadratic function, first consider the factors of the coefficient of x ^ 2 and the constant. In this case, 1 and 16. so the factors: 1 to 1 16 – 1,2,4,8,16 Then use this process: randomly choose a pair of factors that multiply to equal weighting. Thus for 1 we have 1 and 1. single pair. 1 x 1 = 1 since 16 has many factors that can pick up .. 2 and 8 of the first 2 x 8 = 16 now cross multiply by a factor 1, by a factor of 16. 1 …………. 2 …. \ …….. / …… \ …../ …….. \. / ………/ \ ……./…. \. …./…….. \ 1 …………… 8 1 x 2 = 2 OTHER 1 x 8 = 8 with the products add 2 + 8 = 10 this value of 10, which is trying to do —> 8y. 8, opposite the way y. after multiple guesses. factors 1 to 1, 1 16 – 4, 4 works. 1 x 4 = 4 1 x 4 = 4 4 +4 = 8 now can be written by the coefficients 1 …….. ….. 4 ……….<——- (x +4) …. \ ……../ …… \ …../ …….. \. / ……. .. / \ ……./…. \ …../…….. \ 1 …………… 4. ………<——- (X +4) for the factor (x +4) (x +4) ^ 2.9 can use 25x a shortcut for this (a ^ 2-b ^ 2) = (ab) (25x a + b) ^ 2-9 = (5x) ^ 2 – 3 ^ 2 (5x) ^ 2 – 3 ^ 2 = (5x – 3) (5x +3) see if that helps.

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