What is (4sqrt(x)+3sqrt(y))(sqrt(x)-3sqrt(y)) ?

The solution to (4sqrt(x)+3sqrt(y))(sqrt(x)-3sqrt(y)) is 4x-9sqrt(x)sqrt(y)-9y

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simplify (4sqrt(x)+3sqrt(y))(sqrt(x)-3sqrt(y))

simplify

(4 x + 3 y) (x - 3 y)

4 x - 9 x y - 9 y

Solution steps

(4 x + 3 y) (x - 3 y)

Expand

(4 x + 3 y) (x - 3 y) : 4 x - 12 x y + 3 y x - 9 y

= 4 x - 12 x y + 3 y x - 9 y

Add similar elements:

- 12 x y + 3 x y = - 9 x y

= 4 x - 9 x y - 9 y

(2 + \frac{x}{2})^{6}

\frac{sin ( a ) - cot ( a ) ( 1 - cos ( a ) )}{1 - cos ( a )}

R (3, - 2, - 6) y S (5, 1, - 9)

(e^{x} + e^{- x} - 2)^{2}

\frac{1}{( x + i y ) ^{3} - 2 ( x + i y ) ^{2} + 2 ( x + i y )}

What is (4sqrt(x)+3sqrt(y))(sqrt(x)-3sqrt(y)) ?
The solution to (4sqrt(x)+3sqrt(y))(sqrt(x)-3sqrt(y)) is 4x-9sqrt(x)sqrt(y)-9y