Answer is the 3rd picture
hope it helps
If you expand the square, you have

Simplify the right hand side:

Cancel the -3x appearing on both sides:

Multiply both sides by 4:

Consider the square root of both terms (using the doubles sign):

2^10 is equal to 1024 (one thousand and twenty four)
"AC/DF = 5/2" is correct.
Hello,
2k²-3k-9=0
==>k=3 or k=-3/2
Answer C two rational solutions.