x2 + x2 = 2x2 2x^2
-x2 + 2x + 48 = (x +6)(8 - x)
x2 + 2x - 15 = (x - 3)(x + 5)
x2 + 2x - 15 = (x + 5)(x - 3)
x3 - x2 + 2x = x*(x2 - x + 2) which cannot be factored further.
x2 + x2 = 2x2 2x^2
x2+2x-63 = (x-7)(x+9) when factored
-x2 + 2x + 48 = (x +6)(8 - x)
When x = -3
-x2 + 2x + 48 = (-x - 6)(x - 8)
x2 + 2x - 15 = (x - 3)(x + 5)
x2 + 2x - 15 = (x + 5)(x - 3)
x3 - x2 + 2x = x*(x2 - x + 2) which cannot be factored further.
x2 + 2x -6 = 0 x2 + 2x + 1 = 7 (x + 1)2 = 7 x = -1 ± √7
-x2 + 2x + 48 = (-x - 6)(x - 8)
y = x2 + 2x + 1zeros are:0 = x2 + 2x + 10 = (x + 1)(x + 1)0 = (x + 1)2x = -1So that the graph of the function y = x + 2x + 1 touches the x-axis at x = -1.
2x = x2 + 4x - 3 x2 + 2x - 3 = 0 (x - 1)(x - 2) = 0