70t-5t^2-490=0

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Solution for 70t-5t^2-490=0 equation:


Simplifying
70t + -5t2 + -490 = 0

Reorder the terms:
-490 + 70t + -5t2 = 0

Solving
-490 + 70t + -5t2 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-98 + 14t + -1t2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-98 + 14t + -1t2)' equal to zero and attempt to solve: Simplifying -98 + 14t + -1t2 = 0 Solving -98 + 14t + -1t2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 98 + -14t + t2 = 0 Move the constant term to the right: Add '-98' to each side of the equation. 98 + -14t + -98 + t2 = 0 + -98 Reorder the terms: 98 + -98 + -14t + t2 = 0 + -98 Combine like terms: 98 + -98 = 0 0 + -14t + t2 = 0 + -98 -14t + t2 = 0 + -98 Combine like terms: 0 + -98 = -98 -14t + t2 = -98 The t term is -14t. Take half its coefficient (-7). Square it (49) and add it to both sides. Add '49' to each side of the equation. -14t + 49 + t2 = -98 + 49 Reorder the terms: 49 + -14t + t2 = -98 + 49 Combine like terms: -98 + 49 = -49 49 + -14t + t2 = -49 Factor a perfect square on the left side: (t + -7)(t + -7) = -49 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. The solution to this equation could not be determined.

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