If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = -7x2 + 3x + 9 Reorder the terms: 0 = 9 + 3x + -7x2 Solving 0 = 9 + 3x + -7x2 Solving for variable 'x'. Combine like terms: 0 + -9 = -9 -9 + -3x + 7x2 = 9 + 3x + -7x2 + -9 + -3x + 7x2 Reorder the terms: -9 + -3x + 7x2 = 9 + -9 + 3x + -3x + -7x2 + 7x2 Combine like terms: 9 + -9 = 0 -9 + -3x + 7x2 = 0 + 3x + -3x + -7x2 + 7x2 -9 + -3x + 7x2 = 3x + -3x + -7x2 + 7x2 Combine like terms: 3x + -3x = 0 -9 + -3x + 7x2 = 0 + -7x2 + 7x2 -9 + -3x + 7x2 = -7x2 + 7x2 Combine like terms: -7x2 + 7x2 = 0 -9 + -3x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.285714286 + -0.4285714286x + x2 = 0 Move the constant term to the right: Add '1.285714286' to each side of the equation. -1.285714286 + -0.4285714286x + 1.285714286 + x2 = 0 + 1.285714286 Reorder the terms: -1.285714286 + 1.285714286 + -0.4285714286x + x2 = 0 + 1.285714286 Combine like terms: -1.285714286 + 1.285714286 = 0.000000000 0.000000000 + -0.4285714286x + x2 = 0 + 1.285714286 -0.4285714286x + x2 = 0 + 1.285714286 Combine like terms: 0 + 1.285714286 = 1.285714286 -0.4285714286x + x2 = 1.285714286 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 = 1.285714286 + 0.04591836735 Reorder the terms: 0.04591836735 + -0.4285714286x + x2 = 1.285714286 + 0.04591836735 Combine like terms: 1.285714286 + 0.04591836735 = 1.33163265335 0.04591836735 + -0.4285714286x + x2 = 1.33163265335 Factor a perfect square on the left side: (x + -0.2142857143)(x + -0.2142857143) = 1.33163265335 Calculate the square root of the right side: 1.153963887 Break this problem into two subproblems by setting (x + -0.2142857143) equal to 1.153963887 and -1.153963887.Subproblem 1
x + -0.2142857143 = 1.153963887 Simplifying x + -0.2142857143 = 1.153963887 Reorder the terms: -0.2142857143 + x = 1.153963887 Solving -0.2142857143 + x = 1.153963887 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2142857143' to each side of the equation. -0.2142857143 + 0.2142857143 + x = 1.153963887 + 0.2142857143 Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000 0.0000000000 + x = 1.153963887 + 0.2142857143 x = 1.153963887 + 0.2142857143 Combine like terms: 1.153963887 + 0.2142857143 = 1.3682496013 x = 1.3682496013 Simplifying x = 1.3682496013Subproblem 2
x + -0.2142857143 = -1.153963887 Simplifying x + -0.2142857143 = -1.153963887 Reorder the terms: -0.2142857143 + x = -1.153963887 Solving -0.2142857143 + x = -1.153963887 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2142857143' to each side of the equation. -0.2142857143 + 0.2142857143 + x = -1.153963887 + 0.2142857143 Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000 0.0000000000 + x = -1.153963887 + 0.2142857143 x = -1.153963887 + 0.2142857143 Combine like terms: -1.153963887 + 0.2142857143 = -0.9396781727 x = -0.9396781727 Simplifying x = -0.9396781727Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.3682496013, -0.9396781727}
| 4q+5pq-6q-6qp= | | 20=7v-14 | | x=-7x^2+9x+3 | | 5b+10=-3b-6 | | 9z=6z+12 | | 3x*x+29x-10=0 | | 6[9-(8x-6)]+6x=0 | | 0=-7x^2+9x+3 | | -5+5x=-45 | | 4n=-2 | | 2n+6n+8=25.5+3n | | (5y-2)(3y-1)= | | 6(d+6)=4(d-6)+2 | | -6x+8y=1 | | 8[4-(6x-4)]+7x=0 | | 7i(8-3i)= | | 4x^2-32x+48/3x^2-17x-6 | | 10=4+3x | | (X+6)/5 | | (3-5i)-(2+6i)= | | 1/2(6x+12)=5x-2(6+x) | | 3.2e-5.76e=11.52-1.6e | | (8-6i)-(-8+i)= | | 11.2+14.9+16.8= | | 7c-3c-10=2c+20 | | 8a-3=4 | | -7q-5(2q-1)=-6q+3 | | 13-(1+8)=-8 | | k/9=4 | | 69-6x=3x+17 | | 9x-27=6(x-1) | | (8-6i)-(-8+1)= |