document.write( "Question 150221: I am not quite sure the name of this kind of problem because I am still new at this, but if someone could help me I would really appreciate it. This is the problem. It states:\r
\n" ); document.write( "\n" ); document.write( "Multiply (7x+4)(7x^2+5x+4)\r
\n" ); document.write( "\n" ); document.write( "I get confused when it comes down to the steps and I would really appreciate the help. Thank you so much.
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Algebra.Com's Answer #110272 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
(7x+4)(7x^2+5x+4)
\n" ); document.write( "Remember to use the distributive property.
\n" ); document.write( "To make it simpler, use a substitution.
\n" ); document.write( "Let A=7x+4.
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=A%287x%5E2%2B5x%2B4%29\"
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=A7x%5E2%2BA5x%2BA4\"
\n" ); document.write( "That's pretty straight forward.
\n" ); document.write( "Now substitute the original value.
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=A7x%5E2%2BA5x%2BA4\"
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=%287x%2B4%297x%5E2%2B%287x%2B4%295x%2B%287x%2B4%294\"
\n" ); document.write( "Take each term and use the distributive property,
\n" ); document.write( "\"%287x%2B4%297x%5E2=%287x%29%287x%5E2%29%2B%284%29%2A%287x%5E2%29=49x%5E3%2B28x%5E2\"
\n" ); document.write( "\"%287x%2B4%295x=%287x%29%285x%29%2B%284%29%285x%29=35x%5E2%2B20x\"
\n" ); document.write( "\"%287x%2B4%294=28x%2B16\"
\n" ); document.write( "Now put all the parts together,
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=%287x%2B4%297x%5E2%2B%287x%2B4%295x%2B4%287x%2B4%29\"
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\n" ); document.write( "Combine all like terms
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=+49x%5E3%2B%2828%2B35%29x%5E2%2B+%2820%2B28%29x%2B16%29\"
\n" ); document.write( "\"%287x%2B4%29%287x%5E2%2B5x%2B4%29=+highlight%2849x%5E3%2B63x%5E2%2B48x%2B16%29%29\"
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