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Solve for x: (x + A)(x + B) = (x + C)(x + D).

 Jun 26, 2020
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Try to expand and you will get a linear equation. After that you can solve it by moving terms around and simplifying it.

 

(x + A)(x + B) = (x + C)(x + D)

x2 + (A + B)x + AB = x2 + (C + D)x + CD

(A + B)x + AB = (C + D)x + CD

(A + B)x - (C + D)x = CD - AB

(A + B - C - D)x = CD - AB

x = ____________________

One step left for you to complete.

 Jun 26, 2020

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