Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 8 - Polynomials and Factoring - 8-5 Factoring X(squared) + bx + c - Lesson Check: 1

Answer

$(x+3)(x+4)$

Work Step by Step

List the pairs of numbers whose product is 12. 1,12 2,6 3,4 Determine which pair sums to 7, since 7 is the coefficient of x. $3+4=7$ $x^2+7x+12=(x+3)(x+4)$
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