(z-4)(z-10)=0

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Solution for (z-4)(z-10)=0 equation:


Simplifying
(z + -4)(z + -10) = 0

Reorder the terms:
(-4 + z)(z + -10) = 0

Reorder the terms:
(-4 + z)(-10 + z) = 0

Multiply (-4 + z) * (-10 + z)
(-4(-10 + z) + z(-10 + z)) = 0
((-10 * -4 + z * -4) + z(-10 + z)) = 0
((40 + -4z) + z(-10 + z)) = 0
(40 + -4z + (-10 * z + z * z)) = 0
(40 + -4z + (-10z + z2)) = 0

Combine like terms: -4z + -10z = -14z
(40 + -14z + z2) = 0

Solving
40 + -14z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(4 + -1z)(10 + -1z) = 0

Subproblem 1

Set the factor '(4 + -1z)' equal to zero and attempt to solve: Simplifying 4 + -1z = 0 Solving 4 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1z = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1z = 0 + -4 -1z = 0 + -4 Combine like terms: 0 + -4 = -4 -1z = -4 Divide each side by '-1'. z = 4 Simplifying z = 4

Subproblem 2

Set the factor '(10 + -1z)' equal to zero and attempt to solve: Simplifying 10 + -1z = 0 Solving 10 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1z = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1z = 0 + -10 -1z = 0 + -10 Combine like terms: 0 + -10 = -10 -1z = -10 Divide each side by '-1'. z = 10 Simplifying z = 10

Solution

z = {4, 10}

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