(x-a)*(x+d)=0

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Solution for (x-a)*(x+d)=0 equation:


Simplifying
(x + -1a)(x + d) = 0

Reorder the terms:
(-1a + x)(x + d) = 0

Reorder the terms:
(-1a + x)(d + x) = 0

Multiply (-1a + x) * (d + x)
(-1a * (d + x) + x(d + x)) = 0
((d * -1a + x * -1a) + x(d + x)) = 0
((-1ad + -1ax) + x(d + x)) = 0
(-1ad + -1ax + (d * x + x * x)) = 0
(-1ad + -1ax + (dx + x2)) = 0
(-1ad + -1ax + dx + x2) = 0

Solving
-1ad + -1ax + dx + x2 = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1dx' to each side of the equation.
-1ad + -1ax + dx + -1dx + x2 = 0 + -1dx

Combine like terms: dx + -1dx = 0
-1ad + -1ax + 0 + x2 = 0 + -1dx
-1ad + -1ax + x2 = 0 + -1dx
Remove the zero:
-1ad + -1ax + x2 = -1dx

Add '-1x2' to each side of the equation.
-1ad + -1ax + x2 + -1x2 = -1dx + -1x2

Combine like terms: x2 + -1x2 = 0
-1ad + -1ax + 0 = -1dx + -1x2
-1ad + -1ax = -1dx + -1x2

Reorder the terms:
-1ad + -1ax + dx + x2 = -1dx + dx + -1x2 + x2

Combine like terms: -1dx + dx = 0
-1ad + -1ax + dx + x2 = 0 + -1x2 + x2
-1ad + -1ax + dx + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-1ad + -1ax + dx + x2 = 0

The solution to this equation could not be determined.

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