-4t^2+7t=-32

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Solution for -4t^2+7t=-32 equation:


Simplifying
-4t2 + 7t = -32

Reorder the terms:
7t + -4t2 = -32

Solving
7t + -4t2 = -32

Solving for variable 't'.

Reorder the terms:
32 + 7t + -4t2 = -32 + 32

Combine like terms: -32 + 32 = 0
32 + 7t + -4t2 = 0

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

Divide each side by '-4'.
-8 + -1.75t + t2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -1.75t + 8 + t2 = 0 + 8

Reorder the terms:
-8 + 8 + -1.75t + t2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -1.75t + t2 = 0 + 8
-1.75t + t2 = 0 + 8

Combine like terms: 0 + 8 = 8
-1.75t + t2 = 8

The t term is -1.75t.  Take half its coefficient (-0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
-1.75t + 0.765625 + t2 = 8 + 0.765625

Reorder the terms:
0.765625 + -1.75t + t2 = 8 + 0.765625

Combine like terms: 8 + 0.765625 = 8.765625
0.765625 + -1.75t + t2 = 8.765625

Factor a perfect square on the left side:
(t + -0.875)(t + -0.875) = 8.765625

Calculate the square root of the right side: 2.960679821

Break this problem into two subproblems by setting 
(t + -0.875) equal to 2.960679821 and -2.960679821.

Subproblem 1

t + -0.875 = 2.960679821 Simplifying t + -0.875 = 2.960679821 Reorder the terms: -0.875 + t = 2.960679821 Solving -0.875 + t = 2.960679821 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + t = 2.960679821 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + t = 2.960679821 + 0.875 t = 2.960679821 + 0.875 Combine like terms: 2.960679821 + 0.875 = 3.835679821 t = 3.835679821 Simplifying t = 3.835679821

Subproblem 2

t + -0.875 = -2.960679821 Simplifying t + -0.875 = -2.960679821 Reorder the terms: -0.875 + t = -2.960679821 Solving -0.875 + t = -2.960679821 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + t = -2.960679821 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + t = -2.960679821 + 0.875 t = -2.960679821 + 0.875 Combine like terms: -2.960679821 + 0.875 = -2.085679821 t = -2.085679821 Simplifying t = -2.085679821

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.835679821, -2.085679821}

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