What is expand (x^2-1)(2+cos(y)) ?

The solution to expand (x^2-1)(2+cos(y)) is 2x^2+x^2cos(y)-2-cos(y)

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expand (x^2-1)(2+cos(y))

expand

(x^{2} - 1) (2 + cos (y))

2 x^{2} + x^{2} cos (y) - 2 - cos (y)

Solution steps

(x^{2} - 1) (2 + cos (y))

Apply FOIL method

(x^{2} - 1) (2 + cos (y)) : 2 x^{2} + x^{2} cos (y) - 2 - cos (y)

= 2 x^{2} + x^{2} cos (y) - 2 - cos (y)

\frac{x ( x - 4 )}{( x - 2 ) ^{2}}

x^{c o s (x)} (- sin (x) ln (x) + \frac{cos ( x )}{x})

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

tan (θ) (cot (θ) + csc (θ))

tan (\frac{x}{2}) + (1 - cos (x)) \cdot cot (x)

What is expand (x^2-1)(2+cos(y)) ?
The solution to expand (x^2-1)(2+cos(y)) is 2x^2+x^2cos(y)-2-cos(y)