If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -15x + -30 = 0 Reorder the terms: -30 + -15x + x2 = 0 Solving -30 + -15x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '30' to each side of the equation. -30 + -15x + 30 + x2 = 0 + 30 Reorder the terms: -30 + 30 + -15x + x2 = 0 + 30 Combine like terms: -30 + 30 = 0 0 + -15x + x2 = 0 + 30 -15x + x2 = 0 + 30 Combine like terms: 0 + 30 = 30 -15x + x2 = 30 The x term is -15x. Take half its coefficient (-7.5). Square it (56.25) and add it to both sides. Add '56.25' to each side of the equation. -15x + 56.25 + x2 = 30 + 56.25 Reorder the terms: 56.25 + -15x + x2 = 30 + 56.25 Combine like terms: 30 + 56.25 = 86.25 56.25 + -15x + x2 = 86.25 Factor a perfect square on the left side: (x + -7.5)(x + -7.5) = 86.25 Calculate the square root of the right side: 9.287087811 Break this problem into two subproblems by setting (x + -7.5) equal to 9.287087811 and -9.287087811.Subproblem 1
x + -7.5 = 9.287087811 Simplifying x + -7.5 = 9.287087811 Reorder the terms: -7.5 + x = 9.287087811 Solving -7.5 + x = 9.287087811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 9.287087811 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 9.287087811 + 7.5 x = 9.287087811 + 7.5 Combine like terms: 9.287087811 + 7.5 = 16.787087811 x = 16.787087811 Simplifying x = 16.787087811Subproblem 2
x + -7.5 = -9.287087811 Simplifying x + -7.5 = -9.287087811 Reorder the terms: -7.5 + x = -9.287087811 Solving -7.5 + x = -9.287087811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -9.287087811 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -9.287087811 + 7.5 x = -9.287087811 + 7.5 Combine like terms: -9.287087811 + 7.5 = -1.787087811 x = -1.787087811 Simplifying x = -1.787087811Solution
The solution to the problem is based on the solutions from the subproblems. x = {16.787087811, -1.787087811}
| 7x+10-3(x-6)= | | -3/7+y=-2/3 | | 42x-14x+28-28= | | .01x^2+5x+15=0 | | V/8-8=-13 | | 5v^2+38v+21=0 | | 2/3+x=1/3-2x | | 15=-5c | | 8x^2(-4x+2x-6)= | | 16x^2+16y^2+8x-32y=127 | | d=3m+7n | | 15=2n+3 | | 4+-17=31 | | 7(u+6)=-4(5u-9)+9u | | (x-0.95)(x-0.95)=0 | | 7(2x^2+7x+3)-7(4x^2+2x+2)= | | (x^2+6x-8)(-4x)= | | 4y-8+2(3y+5)=-5(y+2) | | -3(7y+5)= | | 10=r/2 | | 3.7x=-9.2 | | 6x+7=-8x+8 | | 3.7(3.7)-0.1(3.7)=-9.2 | | -3(-7v+1)-4v=2(v-2)-2 | | -3x(6x-6)= | | 13.49y=-9.2 | | 4=(x/(0.9-2x)^2) | | (15x^2y)(1/3x^6) | | 8+2(4u-3)=-6(3u-1)+8u | | c^2-5c-36= | | 366=6/7q | | 460=4/7q |