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Factor the expression completely.

-90x^(2)+20x^(4)
Answer:

Factor the expression completely.\newline90x2+20x4 -90 x^{2}+20 x^{4} \newlineAnswer:

Full solution

Q. Factor the expression completely.\newline90x2+20x4 -90 x^{2}+20 x^{4} \newlineAnswer:
  1. Identify GCF: Identify the greatest common factor (GCF) of the terms in the expression 90x2+20x4-90x^{2}+20x^{4}.\newlineThe GCF of 90-90 and 2020 is 1010, and the GCF of x2x^2 and x4x^4 is x2x^2.
  2. Factor out GCF: Factor out the GCF from the expression.\newline90x2+20x4=10x2(9+2x2)-90x^{2}+20x^{4} = 10x^2(-9 + 2x^2)
  3. Further Factoring: Look for any further factoring possibilities within the parentheses.\newlineThe expression inside the parentheses is a quadratic expression that can be factored further.\newline9+2x2-9 + 2x^2 can be rewritten as 2x292x^2 - 9, which is a difference of squares.
  4. Factor Difference of Squares: Factor the difference of squares.\newline2x292x^2 - 9 can be factored as (2x+3)(2x3)(\sqrt{2}x + 3)(\sqrt{2}x - 3), where 2\sqrt{2} is the square root of 22.
  5. Combine Factored Parts: Combine the factored parts to write the final factored expression. \newline10x2(9+2x2)=10x2(2x+3)(2x3)10x^2(-9 + 2x^2) = 10x^2(\sqrt{2}x + 3)(\sqrt{2}x - 3)

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