Question

Factorise -

4a² -4a +1​

Answer 1

Step-by-step explanation:

4a2-4a+1

4a2-2a-2a+1

2a(2a-1) -1 (2a -1)

(2a-1)(2a-1)

Answer 2

Step-by-step explanation:

$4 {a}^{2} - 4a + 1$

$= {(2a)}^{2} - 2 \times 2a \times 1 + {(1)}^{2}$

$= {(2a - 1)}^{2}$

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