find 5x²- 4 - 3x² + 6x + 8 + 5x - 13 value when x = -2
please give correct answer.
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find 5x²- 4 - 3x² + 6x + 8 + 5x - 13 value when x = -2
please give correct answer.
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Answer:
5x² - 4 - 3x² + 6x + 8 + 5x - 13 =
2x² - 9 + 11 x
= 2* (-2)² -9 + 11* -2
= 2* 4 - 9 - 22
= 8 - 9 - 22
= -23
The answer is -23.
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