Answer:
- 12x² + 9x + 9
Step-by-step explanation:
(- 10x² + 2) + (- 2x² + 9x + 7 ) ← remove parenthesis
= - 10x² + 2 - 2x² + 9x + 7 ← collect like terms
= - 12x² + 9x + 9
A square have four right angles and four sides of equal length.
-1*/x+3y=12
<span>-4x+3y=-3
-x-3y= -12
-4x+3y= -3
+-------------------
-5x= -15
x=3
</span><span>x+3y=12
</span><span>
3+3y=12
3y=9 y=3
(x,y)=(3,3)</span>
Answer:
<u>5x² - 10</u>
Step-by-step explanation:
Step 1:
( 
+ 4x - 8 ) - ( 
+ 4x + 2 ) Equation
Step 2:
3x² + 4x - 8 + 2x² - 4x - 2 Open Parenthises
Answer:
5x² - 10 Simplify
Hope This Helps :)
