A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

**Solution:**

The given equation is quadratic in form.

x^{2} - 18x + 81 = 0

Splitting the middle term

x^{2} - 9x - 9x + 81 = 0

Taking out the common terms

x(x - 9) - 9(x - 9) = 0

So we get

(x - 9)(x - 9) = 0

(x - 9)^{2} = 0

Taking square root on both sides

x - 9 = 0

x = 9

Therefore, the value of x is 9.

**Summary:**

The value of x which makes the equation x^{2} - 18x + 81 = 0 true is 9.

Math worksheets and

visual curriculum

visual curriculum

MATH PROGRAM

MATH WORKSHEETS

ABOUT US

MATH PROGRAM

MATH WORKSHEETS

ABOUT US

MATH TOPICS