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Popular >

expand (3x+9)(3x-9)

Solution

expand

(3 x + 9) (3 x - 9)

Solution

9 x^{2} - 81

Solution steps

(3 x + 9) (3 x - 9)

Apply Difference of Two Squares

(3 x + 9) (3 x - 9) : 9 x^{2} - 81

= 9 x^{2} - 81

Popular Examples

\frac{64}{9}

simplify 3/0 simplify

\frac{3}{0}

expand (5x-y)^2 expand

(5 x - y)^{2}

simplify (1-cos(x))/(sin(x))+(sin(x))/(1-cos(x))simplify

\frac{1 - cos ( x )}{sin ( x )} + \frac{sin ( x )}{1 - cos ( x )}

simplify 9/1 simplify

\frac{9}{1}

Frequently Asked Questions (FAQ)

What is expand (3x+9)(3x-9) ?
The solution to expand (3x+9)(3x-9) is 9x^2-81