What is expand (sqrt(a)+sqrt(4b))(sqrt(a)-2sqrt(b)) ?

The solution to expand (sqrt(a)+sqrt(4b))(sqrt(a)-2sqrt(b)) is a-2sqrt(a)sqrt(b)+2sqrt(b)sqrt(a)-4b

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expand (sqrt(a)+sqrt(4b))(sqrt(a)-2sqrt(b))

expand

(a + 4 b) (a - 2 b)

a - 2 a b + 2 b a - 4 b

Solution steps

(a + 4 b) (a - 2 b)

Apply FOIL method

(a + 4 b) (a - 2 b) : a - 2 a b + 2 b a - 4 b

= a - 2 a b + 2 b a - 4 b

(y cos (x) + 2 x e^{y}) + (5 m x + x^{2} e^{y} - 1) y^{'} (x)

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

(cos (2 x) - sin (2 x))^{2} - 1

\frac{x ^{2} - 7 x - 5}{x ( x + 1 ) ^{2}}

f (x) (x = a + 1) - 4

What is expand (sqrt(a)+sqrt(4b))(sqrt(a)-2sqrt(b)) ?
The solution to expand (sqrt(a)+sqrt(4b))(sqrt(a)-2sqrt(b)) is a-2sqrt(a)sqrt(b)+2sqrt(b)sqrt(a)-4b