30a2+89a+63 = (5a+9)(6a+7) when factored
62 + 1 = 63
62/63 is in its simplest form.
In reverse: 63 - 1 = 2n = 62 62 / 2 = 31 Now as the question: (2 x 31) + 1 = 62 + 1 = 63 Q.E.D.
Rounded to two decimal places, 62 / 63 x 100 = 98.41%
30a2+89a+63 = (5a+9)(6a+7) when factored
62 + 1 = 63
62/63 is in its simplest form.
In reverse: 63 - 1 = 2n = 62 62 / 2 = 31 Now as the question: (2 x 31) + 1 = 62 + 1 = 63 Q.E.D.
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
Rounded to two decimal places, 62 / 63 x 100 = 98.41%
2/9 + 1/7 = 14/63 + 9/63 = 23/63
6t2-13t-63 = (3t+7)(2t-9) when factored.
6 plus 6 plus 63 plus 63 plus 36 plus 36 is equal to 210.
50 + 63 + 72 + 63 + 137 + 172 = 557
98.4%