Answer:
add 21 to both sides to get everything on one side
x^2 - 10x + 21 = 0
do factorization, guess and check
(x - 7) (x -3) = 0
x =7, and x =3
Answer:
1.98 or 2
Step-by-step explanation:
6.25 divided by 3.21 is 1.978193146417445 but can be rounded up to 1.98 or 2
