2a^2-7a-14a+49=0

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Solution for 2a^2-7a-14a+49=0 equation:


Simplifying
2a2 + -7a + -14a + 49 = 0

Reorder the terms:
49 + -7a + -14a + 2a2 = 0

Combine like terms: -7a + -14a = -21a
49 + -21a + 2a2 = 0

Solving
49 + -21a + 2a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(7 + -2a)(7 + -1a) = 0

Subproblem 1

Set the factor '(7 + -2a)' equal to zero and attempt to solve: Simplifying 7 + -2a = 0 Solving 7 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2a = 0 + -7 -2a = 0 + -7 Combine like terms: 0 + -7 = -7 -2a = -7 Divide each side by '-2'. a = 3.5 Simplifying a = 3.5

Subproblem 2

Set the factor '(7 + -1a)' equal to zero and attempt to solve: Simplifying 7 + -1a = 0 Solving 7 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1a = 0 + -7 -1a = 0 + -7 Combine like terms: 0 + -7 = -7 -1a = -7 Divide each side by '-1'. a = 7 Simplifying a = 7

Solution

a = {3.5, 7}

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