Question

Fan & medal
Give examples of 3 different Polynomial Identities.

Answer 1

Example 1: If x = 10, y = 5a
(10 + 5a)2 = 102 + 2·10·5a + (5a)2 = 100 + 100a + 25a2

Example 2: if x = 10 and y is 4
(10 - 4)2 = 102 - 2·10·4 + 42 = 100 - 80 + 16 = 36

The opposite is also true:
25 + 20a + 4a2 = 52 + 2·2·5 + (2a)2 = (5 + 2a)2

Answer 2

http://www.math10.com/en/algebra/formulas-for-short-multiplication.html

Answer 3

Thanks, this really helps! :D
If you don't mind me asking, what is a Polynomial Identities?

Answer 4

A polynomial identity is just a true equation, often generalized so that it can apply to more than one situation. For instance, (x2 + y2)2 = (x2 – y2)2 + (2xy)2 is true for any x and y.

Answer 5

Ohhh, okay thanks. This helps me a lot.

Answer 6

your welcome, anytime! ^.^

Answer 7

Would you be able to help with one more question? It's related to this question.

Answer 8

yes

Answer 9

Okay, thanks. This is the question.
3) Pick one of the polynomial identities and prove that it is true

Answer 10

this one has got me stuck im sorry my mind is not working today.

Answer 11

Okay, thanks anyway.