What is expand (sqrt(2)+5)(1+sqrt(2)) ?

The solution to expand (sqrt(2)+5)(1+sqrt(2)) is 6sqrt(2)+7

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expand (sqrt(2)+5)(1+sqrt(2))

expand

(2 + 5) (1 + 2)

62 + 7

Decimal Notation

15.48528 \dots

Solution steps

(2 + 5) (1 + 2)

Apply FOIL method

(2 + 5) (1 + 2) : 62 + 7

= 62 + 7

(x^{2} + 4) (x^{2} - 12 x + 4)

(x^{2} + 22 \cdot x + 4) \cdot (x^{2} - 22 \cdot x + 4)

(- 1 - 3) + i (1 - 3)

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

(\frac{3173}{126})^{2} \cdot (\frac{1}{( 47 ) ^{2}} + \frac{1}{( 79 ) ^{2}} \cdot 1.9)

What is expand (sqrt(2)+5)(1+sqrt(2)) ?
The solution to expand (sqrt(2)+5)(1+sqrt(2)) is 6sqrt(2)+7