If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3x + 7x2 + 21 = 0 Reorder the terms: 21 + 3x + 7x2 = 0 Solving 21 + 3x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 3 + 0.4285714286x + x2 = 0 Move the constant term to the right: Add '-3' to each side of the equation. 3 + 0.4285714286x + -3 + x2 = 0 + -3 Reorder the terms: 3 + -3 + 0.4285714286x + x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 0.4285714286x + x2 = 0 + -3 0.4285714286x + x2 = 0 + -3 Combine like terms: 0 + -3 = -3 0.4285714286x + x2 = -3 The x term is 0.4285714286x. Take half its coefficient (0.2142857143). Square it (0.04591836735) and add it to both sides. Add '0.04591836735' to each side of the equation. 0.4285714286x + 0.04591836735 + x2 = -3 + 0.04591836735 Reorder the terms: 0.04591836735 + 0.4285714286x + x2 = -3 + 0.04591836735 Combine like terms: -3 + 0.04591836735 = -2.95408163265 0.04591836735 + 0.4285714286x + x2 = -2.95408163265 Factor a perfect square on the left side: (x + 0.2142857143)(x + 0.2142857143) = -2.95408163265 Can't calculate square root of the right side. The solution to this equation could not be determined.
| .3(24p-66)=3p+43 | | 7x+49x^2+14=21 | | 7(y+5)=35 | | 9x-40=2x+30 | | 9x^2=12x-4 | | 6x+10x^2-8=20 | | 8x^3=-1 | | 16x^2=8x-1 | | x^2+6x+9=20 | | x^4-27x=o | | 4=3x(-3x+4) | | 10x+25x^2-45=15 | | 4w-21+22d=4.4 | | 3b^2+3b+90=0 | | 9x+3x^2+15=0 | | -19.4-9k=10 | | 5x+2x^3+7=0 | | 25-8x^2+8x= | | P(-5)=-2w^3-7w^2-15 | | 3(2x+8)=10(3x+8) | | 7(3x+10)=5(5x+10) | | 8x+3-2x=2x+7+4x | | 7-2x-8(4x-6)=1+3(5x-2)-19x | | x^2-6x= | | P(w)=-2w^3-7w^2-15 | | 8n^2-4n-18=0 | | 12x^2-23x=0 | | x^2-9x=6 | | y=x^2-9x-6 | | 3(n-8)-6n=3(m+6) | | x^2+4x=1 | | 5(x-1)-3x=3(x+5) |