Question
Factorise the expression : $4x^2– 8x + 4$
✓
Answer
$4x^2– 8x + 4$
$= 4(x^2– 2x + 1)$
$= 4[(x)^2– 2(x) (1) + (1)^2]$
$= 4(x – 1)^2. . . . [$Applying Identity $II]$
$= 4(x^2– 2x + 1)$
$= 4[(x)^2– 2(x) (1) + (1)^2]$
$= 4(x – 1)^2. . . . [$Applying Identity $II]$
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