The equation x ^ 2-5x + 6 = 0 has two roots, which are X1 = 2 and X2 = 3. Try to write the two roots of equation (X-7) ^ 2-5 (X-7) + 6 = 0 directly

The equation x ^ 2-5x + 6 = 0 has two roots, which are X1 = 2 and X2 = 3. Try to write the two roots of equation (X-7) ^ 2-5 (X-7) + 6 = 0 directly

That is, X-7 = 2, X-7 = 3
So x = 9, x = 10

56 to seven eighths, simplify first, and calculate the ratio

Which is bigger, 56 yuan 8 Fen or 56.8 yuan?
3 hours, 50 minutes and 3.5 hours?

Online math helps you
This is a comparative question about unit size
Because 56.8 yuan = 56.8 yuan;
Therefore: 56.8 yuan > 56 yuan 8 points;
5 hours = 3 hours 30 minutes;
Therefore: 3 hours 50 minutes > 3.5 hours!
Hope to help you! I wish you a happy study!

() × 8 / 3 = () × 0.8 = 1
The Xiaolin family is 40 ° north by east of the Xiaoming family, and the Xiaoming family is () by () of the Xiaolin family

8/3 1.25