Respuesta :

pegah
-2 ( -2 ) ^3 -3 (-2) ^2 + 4(-2) +7⇒ -2 ( -2 ) -3 (2) -8 +7 = 4 -6 -8 +7 = -3 :)) 
Things to do:

1. 
Firstly, write down the given expression.

2. Put the values in place.

3. Simplify accordingly.

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1. GIVEN EXPRESSION

[tex]-2p^{3} -3p^{2}+4p+7[/tex]

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2. PUTTING THE VALUES IN PLACE

Values : ([tex]p=-2[/tex])

So, 

[tex][-2*(-2)]^{3}+[-3*(-2)]^{2}+[4*(-2)]+7[/tex]

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3. SIMPLIFICATION PROCESS

[tex][-2*(-2)]^{3}+[-3*(-2)]^{2}+[4*(-2)+7][/tex]

[tex](4)^{3}+(6)^{2}+(-8)+7 [/tex]

= [tex](4*4*4)+(6*6)-8+7[/tex]

[tex]64+36-8+7[/tex]

[tex]64+36+7-8[/tex]

[tex](64+36+7)-8[/tex]

[tex](100+7)-8[/tex]

[tex](107)-8[/tex]

[tex]107-8[/tex]

[tex]99[/tex]

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So, after completing all the steps, we can conclude that the value of [tex]-2p^{3} -3p^{2}+4p+7[/tex] is 99.

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