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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 r2 amp im lost at this point how do I finish this I got the answer 194 10 and 206 but those are all wrong class=

Respuesta :

[tex]\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}[/tex]