Answer:
what don't you understand
You would multiply it by 4
4(3x^2 +2 )
12x^2 +8
Answer:
x=80
Step-by-step explanation:
The sum of interior angles in a quadrilateral is 360°
the square represents a right angle= 90 degrees
124+66+90=280
360-280=80
x=80
Answer:
384/12 or 192/6 or 96/3
Step-by-step explanation:
Answer:
...
Step-by-step explanation: