What is (3+sqrt(2))(3-sqrt(2)) ?

The solution to (3+sqrt(2))(3-sqrt(2)) is 7

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simplify (3+sqrt(2))(3-sqrt(2))

simplify

(3 + 2) (3 - 2)

7

Solution steps

(3 + 2) (3 - 2)

Apply Difference of Two Squares

(3 + 2) (3 - 2) : 7

= 7

0 = x^{2} - 9 x + 18

9 m x - 9 n x + 6 m y - 6 n y + 12 m z - 12 n z

(x^{2} + 4)^{\frac{3}{2}}

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

15 x + 18 \leq x^{2} (2 x + 1)