If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (7c * 2c) + 13 = 21c Reorder the terms for easier multiplication: (7 * 2c * c) + 13 = 21c Multiply 7 * 2 (14c * c) + 13 = 21c Multiply c * c (14c2) + 13 = 21c Reorder the terms: 13 + (14c2) = 21c Solving 13 + (14c2) = 21c Solving for variable 'c'. Reorder the terms: 13 + -21c + (14c2) = 21c + -21c Combine like terms: 21c + -21c = 0 13 + -21c + (14c2) = 0 Begin completing the square. Divide all terms by 14 the coefficient of the squared term: Divide each side by '14'. 0.9285714286 + -1.5c + c2 = 0 Move the constant term to the right: Add '-0.9285714286' to each side of the equation. 0.9285714286 + -1.5c + -0.9285714286 + c2 = 0 + -0.9285714286 Reorder the terms: 0.9285714286 + -0.9285714286 + -1.5c + c2 = 0 + -0.9285714286 Combine like terms: 0.9285714286 + -0.9285714286 = 0.0000000000 0.0000000000 + -1.5c + c2 = 0 + -0.9285714286 -1.5c + c2 = 0 + -0.9285714286 Combine like terms: 0 + -0.9285714286 = -0.9285714286 -1.5c + c2 = -0.9285714286 The c term is -1.5c. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5c + 0.5625 + c2 = -0.9285714286 + 0.5625 Reorder the terms: 0.5625 + -1.5c + c2 = -0.9285714286 + 0.5625 Combine like terms: -0.9285714286 + 0.5625 = -0.3660714286 0.5625 + -1.5c + c2 = -0.3660714286 Factor a perfect square on the left side: ((c) + -0.75)((c) + -0.75) = -0.3660714286 Can't calculate square root of the right side. The solution to this equation could not be determined.
| (2x^2-3x+7)-(-3x^2+4x-7)= | | 7/2=x+1/6 | | 5+4n-5=28 | | 7x+2+7x=2+14x | | t=prt | | (7c*2c)+13=2c | | 8x-25-6x=-35 | | 10=-x/2+6 | | 1/3x+(x-20)+(x-10)+x-40=360 | | 6=-y/3+3 | | t=9x+4 | | (4+7x)+11= | | 12x-6=35x | | -7(x-6)-(6-9)=x | | 43+62+57+x=55 | | r/5-2=5 | | x-6=14# | | x/12-10=11/24 | | 4+4x=4(1+x) | | 5x-(-9)=15 | | 28m-21=3 | | (4x+9)2=44 | | 5(-6)+9y=-3 | | 5x-(-3)=15 | | (7c*8c)+-3c=10 | | 139=-r+6(6r-6) | | Q=r/2(s+t) | | 2a+a+2a+a=360 | | 7/9y+1/4=-2/9y+1/2 | | x-1/x-1=0 | | z/4+6=9-z/4 | | 2x+7+x-5=10-(2x-12) |