It is a quadratic expression in one variable, x (assuming that x and X are the same).
Since it is not an equation, it cannot be solved. Also, it has no real factors.
Chat with our AI personalities
Let the number is x So, X+20=69 X=69-20 X=49 THE NUMBER IS 49 SO, 49 plus 20 equal to 69 .•.
x=7
x2+14x+49 = (x+7)(x+7) when factored
10x + 7 = 4x + 49 6x + 7 = 49 6x = 42 x = 6
2x2 + 21x + 49= 2x2 + 14x + 7x + 49= 2x(x + 7) + 7(x + 7)= (x + 7)(2x + 7)