document.write( "Question 386870: F(-2), for f(r)=5r^2 + 3 please help \n" ); document.write( "
Algebra.Com's Answer #273429 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Just plug in r = -2\r
\n" ); document.write( "\n" ); document.write( "f(-2) = 5(-2)^2 + 3 = 20 + 3 = 23
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