5a^2-10a+40=0

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Solution for 5a^2-10a+40=0 equation:


Simplifying
5a2 + -10a + 40 = 0

Reorder the terms:
40 + -10a + 5a2 = 0

Solving
40 + -10a + 5a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '5'.
5(8 + -2a + a2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(8 + -2a + a2)' equal to zero and attempt to solve: Simplifying 8 + -2a + a2 = 0 Solving 8 + -2a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '-8' to each side of the equation. 8 + -2a + -8 + a2 = 0 + -8 Reorder the terms: 8 + -8 + -2a + a2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -2a + a2 = 0 + -8 -2a + a2 = 0 + -8 Combine like terms: 0 + -8 = -8 -2a + a2 = -8 The a term is -2a. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2a + 1 + a2 = -8 + 1 Reorder the terms: 1 + -2a + a2 = -8 + 1 Combine like terms: -8 + 1 = -7 1 + -2a + a2 = -7 Factor a perfect square on the left side: (a + -1)(a + -1) = -7 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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