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Question
Simplify:
`5"x"^2-(3"x"-overline("x"^2-4))`
Sum
Solution
`5"x"^2-(3"x"-overline("x"^2-4))`
= 5x2 − (3x − x2 + 4)
= 5x2 − 3x + x2 − 4
= 5x2 + x2 − 3x − 4
= 6x2 − 3x − 4
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