document.write( "Question 971185: if f(x)=x^2-7x-4, then the value of f(2x+1)is\r
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document.write( "a. 3x^2-18x+3
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document.write( "b. 4x^2+18x-3
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document.write( "c. 4x^2-10x-10
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document.write( "d. x^2+7x-3 \n" );
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Algebra.Com's Answer #593726 by reviewermath(1029)![]() ![]() You can put this solution on YOUR website! if f(x)=x^2-7x-4, then the value of f(2x+1)is \n" ); document.write( "a. 3x^2-18x+3 \n" ); document.write( "b. 4x^2+18x-3 \n" ); document.write( "c. 4x^2-10x-10 \n" ); document.write( "d. x^2+7x-3\r \n" ); document.write( "\n" ); document.write( "Solution: \n" ); document.write( "f(2x+1) = (2x+1)^2-7(2x+1)-4 \n" ); document.write( " = (4x^2 + 4x + 1) - 14x - 7 - 4 \n" ); document.write( " = 4x^2 - 10x - 10 \n" ); document.write( "Answer: c. 4x^2-10x-10 \n" ); document.write( " |