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Factor completely:

(x+5)(3x+7)+(2x+7)(3x+7)^(2)
Answer:

Factor completely:\newline(x+5)(3x+7)+(2x+7)(3x+7)2 (x+5)(3 x+7)+(2 x+7)(3 x+7)^{2} \newlineAnswer:

Full solution

Q. Factor completely:\newline(x+5)(3x+7)+(2x+7)(3x+7)2 (x+5)(3 x+7)+(2 x+7)(3 x+7)^{2} \newlineAnswer:
  1. Identify Factors: Identify common factors in both terms of the expression.\newlineThe expression is (x+5)(3x+7)+(2x+7)(3x+7)2(x+5)(3x+7)+(2x+7)(3x+7)^{2}. We can see that (3x+7)(3x+7) is a common factor in both terms.
  2. Factor Out Common Factor: Factor out the common factor (3x+7)(3x+7). We can write the expression as (3x+7)(3x+7) times another factor. To find this other factor, we divide each term by (3x+7)(3x+7). (3x+7)[(x+5)+(2x+7)(3x+7)](3x+7)[(x+5) + (2x+7)(3x+7)]
  3. Simplify Inside Brackets: Simplify the expression inside the brackets.\newlineNow we need to simplify the expression inside the brackets by distributing (3x+7)(3x+7) in the second term.\newline(3x+7)[(x+5)+(2x+7)(3x+7)](3x+7)[(x+5) + (2x+7)(3x+7)]\newline= (3x+7)(x+5+(2x+7)(3x+7))(3x+7)(x+5 + (2x+7)(3x+7))
  4. Expand Product: Expand the product (2x+7)(3x+7)(2x+7)(3x+7). To simplify further, we need to multiply (2x+7)(2x+7) by (3x+7)(3x+7). (2x+7)(3x+7)=6x2+21x+14x+49=6x2+35x+49(2x+7)(3x+7) = 6x^2 + 21x + 14x + 49 = 6x^2 + 35x + 49
  5. Combine Like Terms: Combine like terms and rewrite the expression.\newlineNow we combine the like terms from the expansion and rewrite the expression.\newline(3x+7)(x+5+6x2+35x+49)(3x+7)(x+5 + 6x^2 + 35x + 49)\newline= (3x+7)(6x2+36x+54)(3x+7)(6x^2 + 36x + 54)
  6. Factor Quadratic Expression: Factor the quadratic expression if possible.\newlineWe need to check if the quadratic expression 6x2+36x+546x^2 + 36x + 54 can be factored further. However, this is a mistake because the correct expression inside the brackets should be x+5+6x2+35x+49x + 5 + 6x^2 + 35x + 49, not 6x2+36x+546x^2 + 36x + 54.

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