Question

The square of a number is equal to 10 less than 7 times that number. What are the two possible solutions?

Which of the following equations is used in the process of solving this problem?
x 2 - 7x + 70 = 0
x 2 - 7x + 10 = 0
x 2 + 7x - 10 = 0

Answer 1

\(\Large \color{purple}{\rightarrow x^{2} = 7x - 10 }\)
\(\Large \color{purple}{\rightarrow x^{2} - 7x + 10 = 0 }\)

Answer 2

x 2 - 7x + 10 = 0