-3t(t-3)-(t+6)=4

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Solution for -3t(t-3)-(t+6)=4 equation:


Simplifying
-3t(t + -3) + -1(t + 6) = 4

Reorder the terms:
-3t(-3 + t) + -1(t + 6) = 4
(-3 * -3t + t * -3t) + -1(t + 6) = 4
(9t + -3t2) + -1(t + 6) = 4

Reorder the terms:
9t + -3t2 + -1(6 + t) = 4
9t + -3t2 + (6 * -1 + t * -1) = 4
9t + -3t2 + (-6 + -1t) = 4

Reorder the terms:
-6 + 9t + -1t + -3t2 = 4

Combine like terms: 9t + -1t = 8t
-6 + 8t + -3t2 = 4

Solving
-6 + 8t + -3t2 = 4

Solving for variable 't'.

Reorder the terms:
-6 + -4 + 8t + -3t2 = 4 + -4

Combine like terms: -6 + -4 = -10
-10 + 8t + -3t2 = 4 + -4

Combine like terms: 4 + -4 = 0
-10 + 8t + -3t2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
3.333333333 + -2.666666667t + t2 = 0

Move the constant term to the right:

Add '-3.333333333' to each side of the equation.
3.333333333 + -2.666666667t + -3.333333333 + t2 = 0 + -3.333333333

Reorder the terms:
3.333333333 + -3.333333333 + -2.666666667t + t2 = 0 + -3.333333333

Combine like terms: 3.333333333 + -3.333333333 = 0.000000000
0.000000000 + -2.666666667t + t2 = 0 + -3.333333333
-2.666666667t + t2 = 0 + -3.333333333

Combine like terms: 0 + -3.333333333 = -3.333333333
-2.666666667t + t2 = -3.333333333

The t term is -2.666666667t.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667t + 1.777777780 + t2 = -3.333333333 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667t + t2 = -3.333333333 + 1.777777780

Combine like terms: -3.333333333 + 1.777777780 = -1.555555553
1.777777780 + -2.666666667t + t2 = -1.555555553

Factor a perfect square on the left side:
(t + -1.333333334)(t + -1.333333334) = -1.555555553

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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