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Question

Find the sum of:
(iv) 9x26x+7,54x and 63x2

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Solution

Step: Find the sum of given expressions (9x26x+7),(54x) and(63x2)
We need to find sum of (9x26x+7), (5−4𝑥) and (63x2) =(9x26x+7)+(54x)+(63x2)
=(9x23x2)+(6x4x)+(7+5+6) [Groping like terms]
=6x210x+18
Hence, the answer is 6x210x+18.

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