What is (3sqrt(a)+sqrt(b))(3sqrt(a)-sqrt(b)) ?

The solution to (3sqrt(a)+sqrt(b))(3sqrt(a)-sqrt(b)) is 9a-b

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simplify (3sqrt(a)+sqrt(b))(3sqrt(a)-sqrt(b))

simplify

(3 a + b) (3 a - b)

9 a - b

Solution steps

(3 a + b) (3 a - b)

Apply Difference of Two Squares

(3 a + b) (3 a - b) : 9 a - b

= 9 a - b

3 r^{4 (5 r^{2} - r + 4)}

\frac{e ^{3 x - 1} ( 3 x ^{2} + 7 x - 3 )}{2 x ^{2} ( x + 3 ) ^{2}}

12 x^{2.5} (2 x^{3.5} \times 3 x^{2})

lo g_{10} (10) \frac{y}{2}

x (k = a + b - 4 (\frac{c}{c + x}) - 4 (\frac{d \cdot ( b - x )}{d + b - x}))

What is (3sqrt(a)+sqrt(b))(3sqrt(a)-sqrt(b)) ?
The solution to (3sqrt(a)+sqrt(b))(3sqrt(a)-sqrt(b)) is 9a-b