If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8x2 + 30x + -7 = 0 Reorder the terms: -7 + 30x + 8x2 = 0 Solving -7 + 30x + 8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.875 + 3.75x + x2 = 0 Move the constant term to the right: Add '0.875' to each side of the equation. -0.875 + 3.75x + 0.875 + x2 = 0 + 0.875 Reorder the terms: -0.875 + 0.875 + 3.75x + x2 = 0 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + 3.75x + x2 = 0 + 0.875 3.75x + x2 = 0 + 0.875 Combine like terms: 0 + 0.875 = 0.875 3.75x + x2 = 0.875 The x term is 3.75x. Take half its coefficient (1.875). Square it (3.515625) and add it to both sides. Add '3.515625' to each side of the equation. 3.75x + 3.515625 + x2 = 0.875 + 3.515625 Reorder the terms: 3.515625 + 3.75x + x2 = 0.875 + 3.515625 Combine like terms: 0.875 + 3.515625 = 4.390625 3.515625 + 3.75x + x2 = 4.390625 Factor a perfect square on the left side: (x + 1.875)(x + 1.875) = 4.390625 Calculate the square root of the right side: 2.095381827 Break this problem into two subproblems by setting (x + 1.875) equal to 2.095381827 and -2.095381827.Subproblem 1
x + 1.875 = 2.095381827 Simplifying x + 1.875 = 2.095381827 Reorder the terms: 1.875 + x = 2.095381827 Solving 1.875 + x = 2.095381827 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = 2.095381827 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = 2.095381827 + -1.875 x = 2.095381827 + -1.875 Combine like terms: 2.095381827 + -1.875 = 0.220381827 x = 0.220381827 Simplifying x = 0.220381827Subproblem 2
x + 1.875 = -2.095381827 Simplifying x + 1.875 = -2.095381827 Reorder the terms: 1.875 + x = -2.095381827 Solving 1.875 + x = -2.095381827 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = -2.095381827 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = -2.095381827 + -1.875 x = -2.095381827 + -1.875 Combine like terms: -2.095381827 + -1.875 = -3.970381827 x = -3.970381827 Simplifying x = -3.970381827Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.220381827, -3.970381827}
| 63+63w= | | 2sin=0 | | 3x+5(3x-3)=75 | | 2/3-1/6x=0.07 | | 2x=8x-3-4x | | -7x-4=-32 | | 8x^3-12x^2+20x= | | 95=p+29 | | 16x^2=1670 | | (-0.11)(-0.15)= | | 2sin^2x-6cosx+1=0 | | 0.03-0.02=0.07 | | 95=9+29 | | b^2-6b+11=10 | | 12+12y=12y+12 | | x=4-5x | | 6x^2-47x=8 | | 29=-12x | | 87=t+72 | | 3p^2+17p-28=0 | | 7x+2(4x-21)=108 | | 21+-2y=-29+3y | | n^2-20n+101=2 | | -12m+8=0 | | x+79+22=180 | | 798=436+x | | 79+22=x | | 40=-16t^2+40 | | 5x+2(4x+21)=107 | | 5x-6y=45 | | 3=(x-9)1/3 | | (2x-2)14=42 |