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Jobisdone [24]
3 years ago
14

(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3) simplified

Mathematics
2 answers:
igomit [66]3 years ago
6 0

Answer:

− 20 x ^2 + 5 x − 6

Step-by-step explanation:

jolli1 [7]3 years ago
5 0

Answer:

-20x^2+5x-6\\

Step-by-step explanation:

Start by removing the grouping symbols (parentheses) using the sign rules:

(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3)=\\=-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3

Then we re-order and combine like terms:

-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3=\\=-5x^2-9x^2-6x^2+2x-2x+5x+6-9-3=\\=-20x^2+5x-6

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