If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 4x = -15 Reorder the terms: 4x + x2 = -15 Solving 4x + x2 = -15 Solving for variable 'x'. Reorder the terms: 15 + 4x + x2 = -15 + 15 Combine like terms: -15 + 15 = 0 15 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-15' to each side of the equation. 15 + 4x + -15 + x2 = 0 + -15 Reorder the terms: 15 + -15 + 4x + x2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 4x + x2 = 0 + -15 4x + x2 = 0 + -15 Combine like terms: 0 + -15 = -15 4x + x2 = -15 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = -15 + 4 Reorder the terms: 4 + 4x + x2 = -15 + 4 Combine like terms: -15 + 4 = -11 4 + 4x + x2 = -11 Factor a perfect square on the left side: (x + 2)(x + 2) = -11 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 7p+8.3=13.9+6p | | 8[k-15]=24 | | 5(p-6)-2=2p-5 | | 8p+6=13+7p | | 9c^2-24c+16=0 | | 6c+12=96 | | -4y+8=-3y-8 | | a-9-5a=-25 | | 90+7x-10+2x+10=180 | | m-11/2=-5/4 | | 7=4z-(2z+1) | | 6=-3(x) | | 10x+9=109 | | 9*9=81 | | 4x-6(3-x)=13 | | 1.5x+.5=-1.0 | | 14*2=x | | 2-1=1 | | -5x-13=7 | | 2+4x=55 | | 3x+2=2(x+6) | | 2r-6(-10+r)=-7 | | 72-4x=5x+21 | | 7-2s+5s+8=13s+25-5s | | 5*2*(-4)+3*6= | | 20-x=-0.68*(20+x) | | x(x+8)-8(x+8)= | | 32-4=3x-26 | | 6x^2-60x+126= | | -3y+5y-4=-7+4y | | 6x^3+29x^2+27x-20=0 | | x^2+(k-1)x+4=0 |