-4a^2+3a-5=2

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Solution for -4a^2+3a-5=2 equation:


Simplifying
-4a2 + 3a + -5 = 2

Reorder the terms:
-5 + 3a + -4a2 = 2

Solving
-5 + 3a + -4a2 = 2

Solving for variable 'a'.

Reorder the terms:
-5 + -2 + 3a + -4a2 = 2 + -2

Combine like terms: -5 + -2 = -7
-7 + 3a + -4a2 = 2 + -2

Combine like terms: 2 + -2 = 0
-7 + 3a + -4a2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
1.75 + -0.75a + a2 = 0

Move the constant term to the right:

Add '-1.75' to each side of the equation.
1.75 + -0.75a + -1.75 + a2 = 0 + -1.75

Reorder the terms:
1.75 + -1.75 + -0.75a + a2 = 0 + -1.75

Combine like terms: 1.75 + -1.75 = 0.00
0.00 + -0.75a + a2 = 0 + -1.75
-0.75a + a2 = 0 + -1.75

Combine like terms: 0 + -1.75 = -1.75
-0.75a + a2 = -1.75

The a term is -0.75a.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75a + 0.140625 + a2 = -1.75 + 0.140625

Reorder the terms:
0.140625 + -0.75a + a2 = -1.75 + 0.140625

Combine like terms: -1.75 + 0.140625 = -1.609375
0.140625 + -0.75a + a2 = -1.609375

Factor a perfect square on the left side:
(a + -0.375)(a + -0.375) = -1.609375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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