Let’s rewrite these expressions in the forms of $a^2 + 2ab + b^2$ or $a^2 – 2ab + b^2$.
E.g.
$x^2 + 2x + 1 = x^2 + 2.x.1 + 1^2$
$9x^2 – 30x + 25 = (3x)^2 – 2.3x.5 + 5^2$
a) $x^2 + 4x + 4 =$ ………………..
b) $x^2 – 8x + 16 =$ ………………..
c) $4x^2 + 12x + 9 =$ ………………..
d) $9x^2 – 12x + 4 =$ ………………..
1 Marks
Let’s rewrite these expressions in the forms of $a^2 + 2ab + b^2$ or $a^2 – 2ab + b^2$.
E.g.
$x^2 + 2x + 1 = x^2 + 2.x.1 + 1^2$
$9x^2 – 30x + 25 = (3x)^2 – 2.3x.5 + 5^2$
a) $x^2 + 4x + 4 =$ ………………..
b) $x^2 – 8x + 16 =$ ………………..
c) $4x^2 + 12x + 9 =$ ………………..
d) $9x^2 – 12x + 4 =$ ………………..
Select sub-parts from the list to begin.
Study Solution
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