document.write( "Question 475341: Use FOIL to find the product (2b+9)(5b+7) \n" ); document.write( "
Algebra.Com's Answer #325970 by Theo(13342)![]() ![]() You can put this solution on YOUR website! FOIL is First Outer Inner Last \n" ); document.write( "This means: \n" ); document.write( "Multiply the first terms in each factor first. \n" ); document.write( "Multiply the outer terms in each factor next. \n" ); document.write( "Multiply the inner terms in each factor next. \n" ); document.write( "Multiply the last terms in each factor next. \n" ); document.write( "Then you add all the results of each multiplication together and you combine like terms and you have your answer. \n" ); document.write( "Your problem is: \n" ); document.write( "(2b+9)*(5b+7) \n" ); document.write( "Multiply the First terms in each factor first. \n" ); document.write( "That would be 2b * 5b which equals 10b^2 \n" ); document.write( "Multiply the Outer terms in each factor next. \n" ); document.write( "That would be 2b * 7 = 14b \n" ); document.write( "Multiply the Inner terms in each factor next. \n" ); document.write( "That would be 9 * 5b = 45b \n" ); document.write( "Multiply the Outer terms in each factor next. \n" ); document.write( "That would be 9 * 7 = 63 \n" ); document.write( "Add all results of each multiplication together and you get: \n" ); document.write( "10b^2 + 14b + 45b + 63 \n" ); document.write( "Combine like terms and you get: \n" ); document.write( "10b^2 + 59b + 63 \n" ); document.write( "That's your answer. \n" ); document.write( " \n" ); document.write( " |