Solve the quadratic equation by completing the square.

x^2-18x+78=0

first, choose the appropriate form and fill in the blanks with the correct numbers.

a.) (x+?) ^2=?

or

b.) (x-?) ^2=?

then, solve the equation.

x=?

Question

Kristopher Marquez

1 March, 13:42

+1

Answers (1)

Know the Answer?

Skylar Delacruz · Answer 1

Exact Form:

x

=

9

±

√

3

Decimal Form:

x

=

10.73205080

,

7.26794919

Solve the quadratic equation by completing the square.x^2-18x+78=0first, choose the appropriate form and fill in the blanks with the correct numbers.a.) (x+?) ^2=?orb.) (x-?) ^2=?then, solve the equation.x=?