Question

Is it A? http://prntscr.com/azxurg

Answer 1

A.) \[x^2 = 49 \]
is the same as \[a^2 = c\]

What 'b' would you divide by 2 and square?

I would use an answer that has a B format \[ax^2 + bx\]

Answer 2

Oh. I get it! Thank you. c;