Mathematics
(x3 - 5x2 + 7)+ (3x2 + 5x - 2)+ (2x3 - x + 7) is equal to:
3x3 - 2x2 + 4x + 12
3x3 + 2x2 - 4x + 12
3x3 - 2x2 - 4x - 12
3x3 + 2x2 + 4x + 12
Algebraic Expressions
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Answer
(x3 - 5x2 + 7) + (3x2 + 5x - 2) + (2x3 - x + 7)
= (x3 + 2x3) + (-5x2 + 3x2) + (5x - x) + (7 - 2 + 7)
= 3x3 - 2x2 + 4x + 12
Hence, option 1 is the correct option.
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