The sum of 2 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 plus 0 equals 2.
It equals 6
It equals 7
-2
0
x3 + 343 = 0 (x + 7)(x2 - 7x + 49) = 0 So x = -7 or x = [7 +/- sqrt(-147)]/2 The latter two roots are [7 +/- 7i*sqrt(3)]/2 or 7/2*[1 +/- i*sqrt(3)]
22 = 4
I come up with 20.
-2
(-1, 0)
3x + 2 = 0 3x = -2 x = -2/3
y = 0x = y + 2plug 0 in for yx = 0 + 2x = 2