Simplify: $(5 x^{2} - 3 x + 2) - ({3 x}^{2} + 5 x - 1) + (6 x^{2} - 2)$

5 x^{2} - 3 x + 5

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6 x^{2} - 4 x + 1

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8 x^{2} - 8 x + 1

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8 x^{2} - 9 x + 5

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Solution

The correct option is D $8 x^{2} - 8 x + 1$
The value of
$(5 x^{2} - 3 x + 2) - (3 x^{2} + 5 x - 1) + (6 x^{2} - 2)$
$= (5 x^{2} - 3 x^{2} + 6 x^{2}) + (- 3 x - 5 x) + (2 + 1 - 2)$
$= 8 x^{2} - 8 x + 1$

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