Answers

2015-07-17T21:02:00+08:00
Number one: 20 Number two: 9x^2 - 16y^2 Number three: x^2 + 4xy + 2xz + 4y^2 + 4yz + z^2 Number four: n^3 +6n^2 + 12n + 8 Number five: -y^3 - 9y^2 - 27y or 1 *insert long fraction bar here* y^3 + 9y^2 + 27y + 27
0
2015-07-17T21:12:16+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
1. 4 * 5 = 20 or you can also do FOIL: 14+21-6-9 = 20
2. Difference of two squares: 9x²-16y²
3. x²+4y²+z²+4xy+4yx+2xz
4. n³+6n²+12n+8
5. 1 / [y³+9y²+27y+27]
0
4xy and 4yx is the same po, diba? :/
yup