Complete the square
move the 3 aside and work in parenthasees
f(x)=(x^2+6x)+3
take 1/2 of 6 and square it (6/2=3, 3^2=9)
add 9 and -9 inside
f(x)=(x^2+6x+9-9)+3
factor perfect square
f(x)=((x+3)^2-9)+3
get rid of parenthases
f(x)=(x+3)^2-9+3
f(x)=(x+3)^2-6
2nd choice
In this question , we have to find positive and negative square roots of

Square root always occurs in pair, one is positive and other is negative.
And square root of 121 is 11 and square root of 4900 is 70.
Therefore square roots of

are

33 + 12 would be 45 centimeters square
Answer:
153
Step-by-step explanation:
Answer:
Hello,
The answer would be,
A union B = {3,6,9,12}
and A intersection B= {6,9}