Answer: 4a2-20ab+12b2+4a+4
the 2 is squareing 4a and 12b
Step-by-step explanation:
expand move the parentheses
multiply the parentheses
collect like terms
Hey i hope my answer is helpful i did in my head so im sorry if its wrong−13 13/35
II. Triangle ABC is obtuse and III. Triangle ABC is acute, because acute is less than 180° and obtuse is between 180° and 270°
Answer:
x=-2 y=7
Step-by-step explanation: