How would you factor perfect square trinomials? I have a perfect square trinomial 4x^2 - 20x + 25 = 0, and the answer given to me on the answer key is (2x - 5)^2. How do I get to this answer?
2026-04-09 16:57:07.1775753827
Factoring Perfect Square Trinomials
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1
Notice $$X^2\pm 2XY+Y^2=(X\pm Y)^2.$$
Yours is the $(X,Y)=(2x,5)$ case.