What is expand (eh-fg)(ad-bc) ?

The solution to expand (eh-fg)(ad-bc) is eadh-ebch-adfg+bcfg

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expand (eh-fg)(ad-bc)

expand

(e h - f g) (a d - b c)

e a d h - e b c h - a df g + b c f g

Solution steps

(e h - f g) (a d - b c)

Apply FOIL method:

(a + b) (c + d) = a c + a d + b c + b d

a = e h, b = - f g, c = a d, d = - b c

= e ha d + e h (- b c) + (- f g) a d + (- f g) (- b c)

Apply minus-plus rules

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

= e a d h - e b c h - a df g + b c f g

\frac{4 ( x + 2 )}{x}

(2 x^{3} - x^{2} + 2 x - 8)^{\circ} (x + 2)

(x + y^{2} - x y) \frac{d y}{d x} - y

x (u d x + x d u)

\frac{( - 9 + m ) ^{2}}{9}

What is expand (eh-fg)(ad-bc) ?
The solution to expand (eh-fg)(ad-bc) is eadh-ebch-adfg+bcfg