5t^2-7t+20=0

Simple and best practice solution for 5t^2-7t+20=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5t^2-7t+20=0 equation:


Simplifying
5t2 + -7t + 20 = 0

Reorder the terms:
20 + -7t + 5t2 = 0

Solving
20 + -7t + 5t2 = 0

Solving for variable 't'.

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

Divide each side by '5'.
4 + -1.4t + t2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -1.4t + -4 + t2 = 0 + -4

Reorder the terms:
4 + -4 + -1.4t + t2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1.4t + t2 = 0 + -4
-1.4t + t2 = 0 + -4

Combine like terms: 0 + -4 = -4
-1.4t + t2 = -4

The t term is -1.4t.  Take half its coefficient (-0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
-1.4t + 0.49 + t2 = -4 + 0.49

Reorder the terms:
0.49 + -1.4t + t2 = -4 + 0.49

Combine like terms: -4 + 0.49 = -3.51
0.49 + -1.4t + t2 = -3.51

Factor a perfect square on the left side:
(t + -0.7)(t + -0.7) = -3.51

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8*0-10y=80 | | x-2^5/2-243=0 | | -3-1/5 | | 5n+20=2n+27 | | 7x-25-3.50x=40.00 | | 5-c/6=7+c/3 | | 7x-25-3.50=40.00 | | q^2-18q+45=0 | | 5t^2-7=0 | | b/2+8=b/2+10 | | 3x1/6 | | -0.6x+1.59=-0.1+6.59 | | 6c^3+6c^2-120c=0 | | 3x+5=8x-2 | | 3.14y=7.85 | | (1/4)*x-((1/6)*x)=4 | | 9(4x+1)=3x-9x | | X-(18-x)=x-(x-18) | | 9x+5=4x+6 | | 5t^2-7t+2=0 | | 4x^2-2xy+7y^2-2=0 | | 6=1(-2n)+5 | | 4x^2-2xy+7y^2=2 | | 12x-(5x-12)=3+6x | | 5(x-3)-(X-1)=(X+3)-10 | | 41x^2+1=10x | | b/8=-3 | | 8-(3-p)=6+(3p+1) | | 1=n/64 | | (2x-3)/5+(x-1)=(3x-4)/2 | | 3a-3(7+5a)=-9(2+a) | | p/15=5 |

Equations solver categories