If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -9n2 + -4 + 7n = 0 Reorder the terms: -4 + 7n + -9n2 = 0 Solving -4 + 7n + -9n2 = 0 Solving for variable 'n'. Begin completing the square. Divide all terms by -9 the coefficient of the squared term: Divide each side by '-9'. 0.4444444444 + -0.7777777778n + n2 = 0 Move the constant term to the right: Add '-0.4444444444' to each side of the equation. 0.4444444444 + -0.7777777778n + -0.4444444444 + n2 = 0 + -0.4444444444 Reorder the terms: 0.4444444444 + -0.4444444444 + -0.7777777778n + n2 = 0 + -0.4444444444 Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000 0.0000000000 + -0.7777777778n + n2 = 0 + -0.4444444444 -0.7777777778n + n2 = 0 + -0.4444444444 Combine like terms: 0 + -0.4444444444 = -0.4444444444 -0.7777777778n + n2 = -0.4444444444 The n term is -0.7777777778n. Take half its coefficient (-0.3888888889). Square it (0.1512345679) and add it to both sides. Add '0.1512345679' to each side of the equation. -0.7777777778n + 0.1512345679 + n2 = -0.4444444444 + 0.1512345679 Reorder the terms: 0.1512345679 + -0.7777777778n + n2 = -0.4444444444 + 0.1512345679 Combine like terms: -0.4444444444 + 0.1512345679 = -0.2932098765 0.1512345679 + -0.7777777778n + n2 = -0.2932098765 Factor a perfect square on the left side: (n + -0.3888888889)(n + -0.3888888889) = -0.2932098765 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 10(t+352)=-820 | | -3x+15=16 | | m+2m+3=m+2m-2 | | 5x+20=7x+30 | | 5y-16x=4 | | Y=300*4 | | 5t-16x=4 | | 6r-21=75 | | 9-2=-9+2 | | 7y=14x+21 | | Y=300*2 | | 5x+5=8x-4x | | 5s-15=25 | | 15x=789 | | 2-9y=-25 | | 0.05x+0.11(3x+43000)=60970 | | H+76=100 | | 1.2m=9 | | 2x-3(x+6)=5-4(x-1) | | 2(5c-7)=q | | 13+x=4x-8 | | 7x-2x=1+9 | | -141+x=-10x+46 | | 1716=39p+15 | | 2n^2=7n-1 | | 4r+2r+r=1400 | | 6(100-x)=-12 | | 37x-x^2=0 | | 12x-3+3=180 | | F(x)=x^2-13x-30 | | 1716=15p+39 | | y=lg(x-5) |