It's an expression, whose exact value depends on the value assigned to "x".
x^(2) - x - 56 is a Quadratic EXPRESSION. This can be factored to ( x + 7)(x - 8) To find the values of 'x' , it needs to be equated to 'zero' Hence it is Quadratic EQUATION x^(2) - x - 56 = 0 ( x + 7)(x - 8) = 0 x + 7 = 0 x = -7 & / or x - 8 = 0 x = 8
30 + 50 - 56 + 2306 = 2330
56 + 82 - 9 = 129
85 + 25 - 56 = 54
23 + 56 - 4 = 75
(-9 x -8) + (-16) = (72) -16 = 56
8060 Source: calculator
x2 + 7x - 56 cannot be factorised.
45+92-56*2 = 45+92-112 = 25
The next number in the sequence 100,96,104,88,120,56 is 184.The pattern is minus 4, plus 8, minus 16, plus 32, minus 64, plus 128
56 minus 46 = 10
82 minus 56 equals 16.