Saturday

January 31, 2015

January 31, 2015

Posted by **4611star** on Sunday, February 19, 2012 at 10:36am.

(n-1) squared + n + (n+1)squared = 3n +2

- maths -
**Reiny**, Sunday, February 19, 2012 at 10:58amLeft side

= (n-1)^2 + n + (n+1)^2

= n^2 - 2n + 1 + n + n^2 + 2n + 1

= 2n^2 + n + 2

≠ 3n+2

the statement is false

**Answer this Question**

**Related Questions**

math - i am having a minor difficulty i've been stuck for over an hour and don't...

Math - Find the shortcut. Solve these problems. Then find and explain a shortcut...

algebra 2 multiple choice HELP - find f(a), if f(t) = 2t2(squared)-t-2 A. 2(a+t)...

math - How do i find the area of a triangle? For example: A squared + b squared...

College Algebra - Can someone check my answer please! I'm not sure this is right...

Math11U - A Pythagorean Triple is a set of integers that satisfy the Pythagorean...

calculus - prove cos squared B- sin squared B= 2cos squared B -1

10th Grade Algebra - Please help me with these factorise algebra questions!!! 1...

Maths - I have a maths exam tomorrow and am studying with a friend. We are ...

Math - I need help with this problem. In decimal form, write the ratio of the ...