If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 21x2 + 107x + -18 = 0 Reorder the terms: -18 + 107x + 21x2 = 0 Solving -18 + 107x + 21x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. -0.8571428571 + 5.095238095x + x2 = 0 Move the constant term to the right: Add '0.8571428571' to each side of the equation. -0.8571428571 + 5.095238095x + 0.8571428571 + x2 = 0 + 0.8571428571 Reorder the terms: -0.8571428571 + 0.8571428571 + 5.095238095x + x2 = 0 + 0.8571428571 Combine like terms: -0.8571428571 + 0.8571428571 = 0.0000000000 0.0000000000 + 5.095238095x + x2 = 0 + 0.8571428571 5.095238095x + x2 = 0 + 0.8571428571 Combine like terms: 0 + 0.8571428571 = 0.8571428571 5.095238095x + x2 = 0.8571428571 The x term is 5.095238095x. Take half its coefficient (2.547619048). Square it (6.490362814) and add it to both sides. Add '6.490362814' to each side of the equation. 5.095238095x + 6.490362814 + x2 = 0.8571428571 + 6.490362814 Reorder the terms: 6.490362814 + 5.095238095x + x2 = 0.8571428571 + 6.490362814 Combine like terms: 0.8571428571 + 6.490362814 = 7.3475056711 6.490362814 + 5.095238095x + x2 = 7.3475056711 Factor a perfect square on the left side: (x + 2.547619048)(x + 2.547619048) = 7.3475056711 Calculate the square root of the right side: 2.71062828 Break this problem into two subproblems by setting (x + 2.547619048) equal to 2.71062828 and -2.71062828.Subproblem 1
x + 2.547619048 = 2.71062828 Simplifying x + 2.547619048 = 2.71062828 Reorder the terms: 2.547619048 + x = 2.71062828 Solving 2.547619048 + x = 2.71062828 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.547619048' to each side of the equation. 2.547619048 + -2.547619048 + x = 2.71062828 + -2.547619048 Combine like terms: 2.547619048 + -2.547619048 = 0.000000000 0.000000000 + x = 2.71062828 + -2.547619048 x = 2.71062828 + -2.547619048 Combine like terms: 2.71062828 + -2.547619048 = 0.163009232 x = 0.163009232 Simplifying x = 0.163009232Subproblem 2
x + 2.547619048 = -2.71062828 Simplifying x + 2.547619048 = -2.71062828 Reorder the terms: 2.547619048 + x = -2.71062828 Solving 2.547619048 + x = -2.71062828 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.547619048' to each side of the equation. 2.547619048 + -2.547619048 + x = -2.71062828 + -2.547619048 Combine like terms: 2.547619048 + -2.547619048 = 0.000000000 0.000000000 + x = -2.71062828 + -2.547619048 x = -2.71062828 + -2.547619048 Combine like terms: -2.71062828 + -2.547619048 = -5.258247328 x = -5.258247328 Simplifying x = -5.258247328Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.163009232, -5.258247328}
| -7.5= | | 24*3=x | | 36-2k=72 | | 2xy+4y-6= | | 6x+9=6x-6 | | 3x+7=12x+2 | | 4(2x+3)-7=9 | | 15-25y=90 | | 4(2Z+5)=2(4Z-6)+11 | | 9-2d=2d+13 | | 48*3=x | | 0=2x(x+3)-2 | | 6b+14=-7-n | | 3=(22-3.7) | | 9(2x-5)=3(6x+1) | | (5x-2)(49-x^2)=0 | | 2k=6k+5-8k | | 2(2x+1)(m+2)-1=0 | | 2x-x=90 | | 3m^3-6m^2+15=0 | | 2.3x=119.6 | | 2(2x-6)+12=18 | | x^4-2x^3+6x-1=0 | | 4x-2(x-2)=-6+4x-2 | | -3(2x-1)=2x-37 | | 0.18(y-3)+0.14=0.20y-1.5 | | w^2+3w-15=0 | | -2x^4+7=2x+1 | | -12m+4=28 | | (x-2)+9=20 | | 35x-5x^2-50=0 | | 5.6+1.1n=n+98.7 |