adelarivera122006
Answered

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What is the value of -3x^2 - 2x -9 when x= -2

Sagot :

Heather

Answer:

-17

Step-by-step explanation:

given:

-3x^2 - 2x -9 when x= -2

rewriting so it's easier to view:

[tex]-3x^2 - 2x -9[/tex]

substituting:

[tex]-3(-2)^2 - 2(-2) -9[/tex]

simplifying step-by-step:

[tex]-3(4) - 2(-2) -9[/tex]

[tex]-12 - 2(-2) -9[/tex]

[tex]-12 +4 -9[/tex]

[tex]-8-9[/tex]

-17

Hope this helps, have a nice day! :D

theleangreenbean

Answer:

-17

Step-by-step explanation:

Hi there!

[tex]-3x^2 - 2x -9[/tex]

Replace x with -2:

[tex]=-3(-2)^2 - 2(-2) -9\\=-3(4) - (-4) -9\\=-12 +4-9\\= -17[/tex]

I hope this helps!

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