Find the sum of : very fast
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Answer:
23x² + 20
Step-by-step explanation:
Easy to solve I guess
Answered by
0
Answer:
23x^2 + 20
Step-by-step explanation:
5x^2 + 7x + 3 + 12x^2 - 3x + 8 + 6x^2 - 4x + 9
Now combining like terms
=> (5x^2 + 12x^2 + 6x^2) + (7x -3x - 4x) + (3 + 8 + 9)
=> 23x^2 + 20
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