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Q.

How do you factiomise  8 x 2 +18x+9?  

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a

(4x + 3)(2x – 3)

b

(4x – 3)(2x – 3)

c

(4x + 3)(2x + 3)

d

(4x + 3)(2x – 6) 

answer is C.

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Detailed Solution

8x2 + 18x + 9
By splitting the middle term method So, we can split the middle term
8x2 + 12x + 6x + 9
4x (2x + 3) + 3 (x+3)
(4x +3)(2x = 3)
:- The factorised form of 8x2 + 18x + 9
Is (4x + 3)(2x + 3)
 
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