Question

M9
- Find the following products
(i) (3x +4) (3x + 5)​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

9x² + 27x + 20

Step-by-step explanation:

This is fourth identity = (x + a) (x + b)  = x² + (a+b)x +ab

(3x+4) (3x+5) = (3x)² + (4+5)3x + 4×5

                     = 9x² + 9×3x + 20

                     = 9x² + 27x + 20

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