What is (sqrt(y^2+1)+3)(sqrt(y^2+1)-3) ?

The solution to (sqrt(y^2+1)+3)(sqrt(y^2+1)-3) is y^2-8

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simplify (sqrt(y^2+1)+3)(sqrt(y^2+1)-3)

simplify

(y^{2} + 1 + 3) (y^{2} + 1 - 3)

y^{2} - 8

Solution steps

(y^{2} + 1 + 3) (y^{2} + 1 - 3)

Apply Difference of Two Squares

(y^{2} + 1 + 3) (y^{2} + 1 - 3) : y^{2} - 8

= y^{2} - 8

(5 x - 2) (5 x + 2)

(x - 1 + 6) (x - 1 - 6)

(3 t - 1)^{3} d x

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

\frac{1}{( 8 + x ) ^{2}}

What is (sqrt(y^2+1)+3)(sqrt(y^2+1)-3) ?
The solution to (sqrt(y^2+1)+3)(sqrt(y^2+1)-3) is y^2-8