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I have to evaluate r(2) & im lost at this point how do I finish this I got the answer -194, -10, and -206 but those are all wrong

I have to evaluate r(2) & im lost at this point how do I finish this I got the answer -194, -10, and -206 but those are all wrong
asked 169k views
1 vote
I have to evaluate r(2) & im lost at this point how do I finish this I got the answer -194, -10, and -206 but those are all wrong

I have to evaluate r(2) & im lost at this point how do I finish this I got the-example-1
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User Shaindy
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7.2k points

1 Answer

3 votes

\bf r(x)=2x^3-3x^3+4x-2 \\\\\\ \begin{array}{llllllll} r(2)=&2(2)^3&-&3(2)^3&+&4(2)&-&2\\ &2\cdot 8&-&3\cdot 8&+&4\cdot 2&-&2\\ &16&-&24&+&8&-&2\\ &16&-&24&+&6\\ &16&-&18\\ &-2 \end{array}
answered
User GiampaoloGabba
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7.4k points
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