If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 12x2 + 13x + 15 = 0 Reorder the terms: 15 + 13x + 2x2 + 12x2 = 0 Combine like terms: 2x2 + 12x2 = 14x2 15 + 13x + 14x2 = 0 Solving 15 + 13x + 14x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 14 the coefficient of the squared term: Divide each side by '14'. 1.071428571 + 0.9285714286x + x2 = 0 Move the constant term to the right: Add '-1.071428571' to each side of the equation. 1.071428571 + 0.9285714286x + -1.071428571 + x2 = 0 + -1.071428571 Reorder the terms: 1.071428571 + -1.071428571 + 0.9285714286x + x2 = 0 + -1.071428571 Combine like terms: 1.071428571 + -1.071428571 = 0.000000000 0.000000000 + 0.9285714286x + x2 = 0 + -1.071428571 0.9285714286x + x2 = 0 + -1.071428571 Combine like terms: 0 + -1.071428571 = -1.071428571 0.9285714286x + x2 = -1.071428571 The x term is 0.9285714286x. Take half its coefficient (0.4642857143). Square it (0.2155612245) and add it to both sides. Add '0.2155612245' to each side of the equation. 0.9285714286x + 0.2155612245 + x2 = -1.071428571 + 0.2155612245 Reorder the terms: 0.2155612245 + 0.9285714286x + x2 = -1.071428571 + 0.2155612245 Combine like terms: -1.071428571 + 0.2155612245 = -0.8558673465 0.2155612245 + 0.9285714286x + x2 = -0.8558673465 Factor a perfect square on the left side: (x + 0.4642857143)(x + 0.4642857143) = -0.8558673465 Can't calculate square root of the right side. The solution to this equation could not be determined.
| -2(b+4)+5(2b+3)=-2b+3b | | -18+20=-2(x+5) | | 7v^2-15v-18=0 | | 6x+27=2x | | -7v=-15v-18 | | 4y+5=8y | | 8a+96=-24 | | -7a-6b-11=0 | | 3n^2+36=0 | | 34m+14=30m+22 | | -7(3y-10)+6y=55 | | 16n^2=-9 | | 2a^2+2a=0 | | 6+r=9 | | -3a+6b+15=0 | | 17-5(2x-9)=6x-6+4 | | x+3=5-3x | | 0=x^3-2.1x^2 | | 7j=3 | | 8-2x-5-10x=6 | | -2x-9y=40 | | x^4-12x^2-2x=0 | | -2x^2+2x+144=0 | | 5v=4 | | -6x-5y=32 | | 2x+(x-4)=9 | | 3(5y+9)= | | 5(4x+1)=3x-6x | | 8x-[3x-(5x-6y)]-2y= | | 5x+21=2(x+21) | | 15x-8=10x-13 | | 5q=12-g |