Step-by-step explanation:
what do you mean ? what needs to be done ?
solve the equation for x ?
(x+1)² + (x-8)² = 0
x² + 2x + 1 + x² -16x + 64 = 0
2x² - 14x + 65 = 0
the formula to solve such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
a = 2
b = -14
c = 65
x = (14 ± sqrt(196 - 520))/4 = (14 ± sqrt(-324))/4 =
= (14 ± 18i)/4 = (7 ± 9i)/2
remember that the is no real solution to a square root of a negative number. sqrt(-1) is called I. and all numbers that are combinations with I are called complex numbers.
x1 = (7 + 9i)/2
x2 = (7 - 9i)/2
