(8b + 7)(7b + 9)
(x - 7)(x - 9)
7(2x + 9)
Yes, 21 is a factor of 63. 63 = 3x21
No; 3 is a factor of 63.
No, 9 is a factor of 63.
6 plus 6 plus 63 plus 63 plus 36 plus 36 is equal to 210.
50 + 63 + 72 + 63 + 137 + 172 = 557
63 has a square factor, but no equal ones.
48x2+139+63 = (3x+7)(16x+9) when factored and worked out with the help of the quadratic equation formula
x2+2x-63 = (x-7)(x+9) when factored
63 is.