y = x2 + 16x - 4
The minimum value of y in this case is -b/2a, or -16/2, which is -8. If you solve the equation for x = -8, you will find the coordinates of the lowest point are (-8, -68).
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x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
(x2 + 26x +) : syntax error.x2 + 26x
x2 + 63
x + 4