SOLUTION: Hi, i was ask to Find the sum or difference of these problems: (x^2-2x+7)+(-5x^2-3)i have an idea like to distribute the problem but i don't know if i should multiply or add a

Algebra ->  Absolute-value -> SOLUTION: Hi, i was ask to Find the sum or difference of these problems: (x^2-2x+7)+(-5x^2-3)i have an idea like to distribute the problem but i don't know if i should multiply or add a      Log On


   



Question 35374: Hi, i was ask to Find the sum or difference of these problems:
(x^2-2x+7)+(-5x^2-3)i have an idea like to distribute the problem but i don't know if i should multiply or add
and find the the product of: 2x^2(x+3)i really am stuck with this promblem, should i multiply the 2x^2 with x and 3, i'm confused please help me.

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
The first problem is an ADDITION problem, and you must just combine like terms. This is NOT distributive property.
%28x%5E2-2x%2B7%29%2B%28-5x%5E2-3%29
+x%5E2+-5x%5E2+-2x+%2B+7+-3+
-4x%5E2+-2x+%2B+4

The second problem you mentioned is the DISTRIBUTIVE PROPERTY. For distributive property, you must have an addition or subtraction within the parentheses, and a product times that sum or difference.
2x%5E2%28x%2B3%29
2x%5E3+%2B+6x%5E2

R^2 at SCC