7(t*t+5t-9)+t=t(7t-2)13

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Solution for 7(t*t+5t-9)+t=t(7t-2)13 equation:


Simplifying
7(t * t + 5t + -9) + t = t(7t + -2) * 13

Multiply t * t
7(t2 + 5t + -9) + t = t(7t + -2) * 13

Reorder the terms:
7(-9 + 5t + t2) + t = t(7t + -2) * 13
(-9 * 7 + 5t * 7 + t2 * 7) + t = t(7t + -2) * 13
(-63 + 35t + 7t2) + t = t(7t + -2) * 13

Reorder the terms:
-63 + 35t + t + 7t2 = t(7t + -2) * 13

Combine like terms: 35t + t = 36t
-63 + 36t + 7t2 = t(7t + -2) * 13

Reorder the terms:
-63 + 36t + 7t2 = t(-2 + 7t) * 13

Reorder the terms for easier multiplication:
-63 + 36t + 7t2 = 13t(-2 + 7t)
-63 + 36t + 7t2 = (-2 * 13t + 7t * 13t)
-63 + 36t + 7t2 = (-26t + 91t2)

Solving
-63 + 36t + 7t2 = -26t + 91t2

Solving for variable 't'.

Reorder the terms:
-63 + 36t + 26t + 7t2 + -91t2 = -26t + 91t2 + 26t + -91t2

Combine like terms: 36t + 26t = 62t
-63 + 62t + 7t2 + -91t2 = -26t + 91t2 + 26t + -91t2

Combine like terms: 7t2 + -91t2 = -84t2
-63 + 62t + -84t2 = -26t + 91t2 + 26t + -91t2

Reorder the terms:
-63 + 62t + -84t2 = -26t + 26t + 91t2 + -91t2

Combine like terms: -26t + 26t = 0
-63 + 62t + -84t2 = 0 + 91t2 + -91t2
-63 + 62t + -84t2 = 91t2 + -91t2

Combine like terms: 91t2 + -91t2 = 0
-63 + 62t + -84t2 = 0

Begin completing the square.  Divide all terms by
-84 the coefficient of the squared term: 

Divide each side by '-84'.
0.75 + -0.7380952381t + t2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -0.7380952381t + -0.75 + t2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -0.7380952381t + t2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -0.7380952381t + t2 = 0 + -0.75
-0.7380952381t + t2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-0.7380952381t + t2 = -0.75

The t term is -0.7380952381t.  Take half its coefficient (-0.3690476191).
Square it (0.1361961452) and add it to both sides.

Add '0.1361961452' to each side of the equation.
-0.7380952381t + 0.1361961452 + t2 = -0.75 + 0.1361961452

Reorder the terms:
0.1361961452 + -0.7380952381t + t2 = -0.75 + 0.1361961452

Combine like terms: -0.75 + 0.1361961452 = -0.6138038548
0.1361961452 + -0.7380952381t + t2 = -0.6138038548

Factor a perfect square on the left side:
(t + -0.3690476191)(t + -0.3690476191) = -0.6138038548

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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