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 + -78 = 0 Reorder the terms: -78 + 4x + x2 = 0 Solving -78 + 4x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '78' to each side of the equation. -78 + 4x + 78 + x2 = 0 + 78 Reorder the terms: -78 + 78 + 4x + x2 = 0 + 78 Combine like terms: -78 + 78 = 0 0 + 4x + x2 = 0 + 78 4x + x2 = 0 + 78 Combine like terms: 0 + 78 = 78 4x + x2 = 78 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 = 78 + 4 Reorder the terms: 4 + 4x + x2 = 78 + 4 Combine like terms: 78 + 4 = 82 4 + 4x + x2 = 82 Factor a perfect square on the left side: (x + 2)(x + 2) = 82 Calculate the square root of the right side: 9.055385138 Break this problem into two subproblems by setting (x + 2) equal to 9.055385138 and -9.055385138.Subproblem 1
x + 2 = 9.055385138 Simplifying x + 2 = 9.055385138 Reorder the terms: 2 + x = 9.055385138 Solving 2 + x = 9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 9.055385138 + -2 Combine like terms: 2 + -2 = 0 0 + x = 9.055385138 + -2 x = 9.055385138 + -2 Combine like terms: 9.055385138 + -2 = 7.055385138 x = 7.055385138 Simplifying x = 7.055385138Subproblem 2
x + 2 = -9.055385138 Simplifying x + 2 = -9.055385138 Reorder the terms: 2 + x = -9.055385138 Solving 2 + x = -9.055385138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -9.055385138 + -2 Combine like terms: 2 + -2 = 0 0 + x = -9.055385138 + -2 x = -9.055385138 + -2 Combine like terms: -9.055385138 + -2 = -11.055385138 x = -11.055385138 Simplifying x = -11.055385138Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.055385138, -11.055385138}
| 1/3x+9=15 | | x+4=28-x^2 | | 3x-2+2(2-x)=-2 | | 4x+30=15 | | 0.5(t+7)=48 | | 3/4g=-27 | | 4x-24=2x+8 | | 7p+4=-5+4p | | q-7=56 | | 4p+8=2(2p+4) | | -7-(-6)=y | | (1264/4*8)-(144*3-60+80) | | 13x-4y=-20 | | 6+3.3(x-9)=0.5(2-x) | | 2/1/2+2/2/3 | | (16/8/2)*(16/8/2) | | 5/6k=-20 | | 5f-1/2=4f-3/4 | | (7m^6n)(-8mn^4)= | | -2(x)=x^2-3x | | -w/5+17=-3 | | (100*6/2+80)-(20*5-6+80) | | n/8+3=-4 | | 96/12-3 | | -63+7x=-154 | | u^2-35u-200=0 | | 1/2b^2-5/2b-42=0 | | x-(-3)=32 | | 170/17+21=31 | | 2x+12=40 | | 0.8-0.4+0.1=4 | | 8b^2+18b+(-9)=-18 |