2 years ago

Simplify the expression below: (-5x² + 2) - (4x² – 5x - 9)

1 answer:

3 0

Answer:

-9x² + 5x + 11

Step-by-step explanation:

-5x² + (-4x²) + 5x + 2 + 9

-9x² + 5x + 11

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sergiy2304 [10]

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C. {-9,-3}

Step-by-step explanation:

$|k+6|=3$ gives $k+6=3$ if $k + 6 \geq 0$ . This gives $k=-3$ , which is valid.

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Step-by-step explanation:

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