2a(7a^2-3a+9)=

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Solution for 2a(7a^2-3a+9)= equation:


Simplifying
2a(7a2 + -3a + 9) = 0

Reorder the terms:
2a(9 + -3a + 7a2) = 0
(9 * 2a + -3a * 2a + 7a2 * 2a) = 0
(18a + -6a2 + 14a3) = 0

Solving
18a + -6a2 + 14a3 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '2a'.
2a(9 + -3a + 7a2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(9 + -3a + 7a2)' equal to zero and attempt to solve: Simplifying 9 + -3a + 7a2 = 0 Solving 9 + -3a + 7a2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 1.285714286 + -0.4285714286a + a2 = 0 Move the constant term to the right: Add '-1.285714286' to each side of the equation. 1.285714286 + -0.4285714286a + -1.285714286 + a2 = 0 + -1.285714286 Reorder the terms: 1.285714286 + -1.285714286 + -0.4285714286a + a2 = 0 + -1.285714286 Combine like terms: 1.285714286 + -1.285714286 = 0.000000000 0.000000000 + -0.4285714286a + a2 = 0 + -1.285714286 -0.4285714286a + a2 = 0 + -1.285714286 Combine like terms: 0 + -1.285714286 = -1.285714286 -0.4285714286a + a2 = -1.285714286 The a term is -0.4285714286a. Take half its coefficient (-0.2142857143). Square it (0.04591836735) and add it to both sides. Add '0.04591836735' to each side of the equation. -0.4285714286a + 0.04591836735 + a2 = -1.285714286 + 0.04591836735 Reorder the terms: 0.04591836735 + -0.4285714286a + a2 = -1.285714286 + 0.04591836735 Combine like terms: -1.285714286 + 0.04591836735 = -1.23979591865 0.04591836735 + -0.4285714286a + a2 = -1.23979591865 Factor a perfect square on the left side: (a + -0.2142857143)(a + -0.2142857143) = -1.23979591865 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.

Solution

a = {0}

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