Question

3. Factorise the following expressions.
(a) x2 + 8x + 16
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Answer 1

Answer:

= (x+4)(x+4)

Step-by-step explanation:

= x^2 + 8x + 16

= x^2 + 4x + 4x + 16

= x(x+4) + 4(x+4)

= (x+4)(x+4)

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Answer 2

Answer:

(x+4)^2

Step-by-step explanation:

given: x^2+8x+16

-> x^2 + (2.4.x) +4^2

It’s in the form: a^2+ 2ab + b^2= (a+b)^2

.

. . (x+4)^ 2

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