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UPSKILL MATH PLUS

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Subjects
Mathematics State Board
Class 9
Algebra
Algebraic identities

25. Two mark exercise problems XIV

Exercise condition:

6 m.

Factorise the following by splitting the middle term.

(i)

$x^2 + 10x + 24$

Answer:

The solution is

$(x + 6)$ and $(x + 4)$
$(x + 6)$ and $(x - 4)$
$(x - 6)$ and $(x + 4)$
$(x - 6)$ and $(x - 4)$

(ii)

$z^2 + 4z - 12$

Answer:

The solution is

$(z + 2)$ and $(z + 6)$
$(z - 2)$ and $(z - 6)$
$(z - 2)$ and $(z + 6)$
$(z + 2)$ and $(z - 6)$

(iii)

$p^2 - 6p - 16$

Answer:

The solution is

$(p + 8)$ and $(p + 2)$
$(p - 8)$ and $(p + 2)$
$(p + 8)$ and $(p - 2)$
$(p - 8)$ and $(p - 2)$

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