Question

using completing the square method show that the equation X square - 8 x + 18 equal to zero has no solution​i want to check the answer for todays exam

Answer 1

Answer:

In equation

x²-8x+18

Using Completing the Square Method

x² - 8x = -18

x² -8x +{ × (-8)}²= -18 + { × (-8)}²

x² - 8x + ² = -18 + (-4}²

(x - 4)² = -18 + 16

(x-4)² = -2

Since √D < 0

Thus there are no real roots, and hence the equation has no solution

Answer 2

Answer:

hope its helpfu

Step-by-step explanation:

x2-8x+18=0

x2-8x1/2x+18=0

x2-4x+18=0

x-4^2-116+18=0

x-4^2=-2

x-4=root2

x-4=+-root2

x=+-root2+4

x=4+-2 or x=4-root2