Math  /  Algebra

QuestionFactor the following trinomial completely. 4a24a+14 a^{2}-4 a+1

Studdy Solution

STEP 1

1. The expression is a quadratic trinomial.
2. We are asked to factor the trinomial completely.
3. The trinomial may be a perfect square trinomial.

STEP 2

1. Identify if the trinomial is a perfect square.
2. Use the perfect square trinomial formula to factor the expression.

STEP 3

Check if the trinomial 4a24a+14a^2 - 4a + 1 is a perfect square trinomial. A perfect square trinomial has the form (AB)2=A22AB+B2(A - B)^2 = A^2 - 2AB + B^2.
Identify AA and BB such that: - A2=4a2A^2 = 4a^2 - B2=1B^2 = 1 - 2AB=4a-2AB = -4a
From A2=4a2A^2 = 4a^2, we have A=2aA = 2a.
From B2=1B^2 = 1, we have B=1B = 1.
Check if 2AB=4a-2AB = -4a holds: 2(2a)(1)=4a-2(2a)(1) = -4a This is true, so the trinomial is a perfect square.

STEP 4

Use the perfect square trinomial formula to factor the expression:
Since 4a24a+14a^2 - 4a + 1 is a perfect square trinomial, it can be factored as: (2a1)2(2a - 1)^2

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