We started Chapter 10 with polynomials today and we covered polynomial addition, substraction, and multiplication.

For adding and substracting two polynomials, it is important to add/substract the same degree terms. For multiplying two polynomials, one uses the distributive property and multiplies each term out. For multiplying two binomials, there is an easy way to help student remember: FOIL, which refers to the First terms, the Outer terms, the Inner terms, and the Last terms:

(ax + b)(cx + d) = acx^2 + adx + bcx + bd

There are some special products of polynomials that students should memorize:

(a + b)(a – b) = a^2 – b^2

(a +/- b)^2 = a^2 +/- 2ab + b^2

For home work, visit the following link:

http://blog.newtonchineseschool.org/wangweidong/files/2012/01/Math7_Fall_HW_L14.pdf