What is expand-x(2x+y=7) ?

The solution to expand-x(2x+y=7) is -2x^2-xy=7

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expand-x(2x+y=7)

expand

- x (2 x + y = 7)

- 2 x^{2} - x y = 7

Solution steps

- x (2 x + y = 7)

= - x (2 x + 7 = y)

Apply the distributive law:

a (b + c) = ab + a c

a = - x, b = 2 x, c = y = 7

- x \cdot 2 x + (- x) y = 7

Apply minus-plus rules

+ (- a) = - a

- 2 xx - x y = 7

Expand

- 2 xx - x y : - 2 x^{2} - x y

- 2 x^{2} - x y = 7

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