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

The solution to expand (x+1,y-2)(x+1y-2) is xx+1*xy-2x+1,xy+1,1*yy-1,2y-2x-2*1*y+2*2

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expand (x+1,y-2)(x+1y-2)

expand

(x + 1, y - 2) (x + 1 y - 2)

xx + 1 \cdot x y - 2 x + 1, x y + 1, 1 \cdot yy - 1, 2 y - 2 x - 2 \cdot 1 \cdot y + 2 \cdot 2

Solution steps

(x + 1, y - 2) (x + 1 \cdot y - 2)

Distribute parentheses

= xx + x \cdot 1 \cdot y + x (- 2) + 1, y x + 1, y \cdot 1 \cdot y + 1, y (- 2) + (- 2) x + (- 2) \cdot 1 \cdot y + (- 2) (- 2)

Apply minus-plus rules

+ (- a) = - a, (- a) (- b) = ab

= xx + 1 \cdot x y - 2 x + 1, x y + 1, 1 \cdot yy - 1, 2 y - 2 x - 2 \cdot 1 \cdot y + 2 \cdot 2

(5 y^{3} + 2 x) d x + 15 y^{2} x d y

cos (x) (cos (2 x) - sin (x))

(v^{2} + u^{2}) v^{2} + u^{2}

2646 (s + s^{'})^{2}

4 x^{3 (6 x^{5} - 2 x + 3)}

What is expand (x+1,y-2)(x+1y-2) ?
The solution to expand (x+1,y-2)(x+1y-2) is xx+1*xy-2x+1,xy+1,1*yy-1,2y-2x-2*1*y+2*2