If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -7x2 + 5x + 4 = 0 Reorder the terms: 4 + 5x + -7x2 = 0 Solving 4 + 5x + -7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -7 the coefficient of the squared term: Divide each side by '-7'. -0.5714285714 + -0.7142857143x + x2 = 0 Move the constant term to the right: Add '0.5714285714' to each side of the equation. -0.5714285714 + -0.7142857143x + 0.5714285714 + x2 = 0 + 0.5714285714 Reorder the terms: -0.5714285714 + 0.5714285714 + -0.7142857143x + x2 = 0 + 0.5714285714 Combine like terms: -0.5714285714 + 0.5714285714 = 0.0000000000 0.0000000000 + -0.7142857143x + x2 = 0 + 0.5714285714 -0.7142857143x + x2 = 0 + 0.5714285714 Combine like terms: 0 + 0.5714285714 = 0.5714285714 -0.7142857143x + x2 = 0.5714285714 The x term is -0.7142857143x. Take half its coefficient (-0.3571428572). Square it (0.1275510204) and add it to both sides. Add '0.1275510204' to each side of the equation. -0.7142857143x + 0.1275510204 + x2 = 0.5714285714 + 0.1275510204 Reorder the terms: 0.1275510204 + -0.7142857143x + x2 = 0.5714285714 + 0.1275510204 Combine like terms: 0.5714285714 + 0.1275510204 = 0.6989795918 0.1275510204 + -0.7142857143x + x2 = 0.6989795918 Factor a perfect square on the left side: (x + -0.3571428572)(x + -0.3571428572) = 0.6989795918 Calculate the square root of the right side: 0.836049994 Break this problem into two subproblems by setting (x + -0.3571428572) equal to 0.836049994 and -0.836049994.Subproblem 1
x + -0.3571428572 = 0.836049994 Simplifying x + -0.3571428572 = 0.836049994 Reorder the terms: -0.3571428572 + x = 0.836049994 Solving -0.3571428572 + x = 0.836049994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3571428572' to each side of the equation. -0.3571428572 + 0.3571428572 + x = 0.836049994 + 0.3571428572 Combine like terms: -0.3571428572 + 0.3571428572 = 0.0000000000 0.0000000000 + x = 0.836049994 + 0.3571428572 x = 0.836049994 + 0.3571428572 Combine like terms: 0.836049994 + 0.3571428572 = 1.1931928512 x = 1.1931928512 Simplifying x = 1.1931928512Subproblem 2
x + -0.3571428572 = -0.836049994 Simplifying x + -0.3571428572 = -0.836049994 Reorder the terms: -0.3571428572 + x = -0.836049994 Solving -0.3571428572 + x = -0.836049994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3571428572' to each side of the equation. -0.3571428572 + 0.3571428572 + x = -0.836049994 + 0.3571428572 Combine like terms: -0.3571428572 + 0.3571428572 = 0.0000000000 0.0000000000 + x = -0.836049994 + 0.3571428572 x = -0.836049994 + 0.3571428572 Combine like terms: -0.836049994 + 0.3571428572 = -0.4789071368 x = -0.4789071368 Simplifying x = -0.4789071368Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.1931928512, -0.4789071368}
| 4x-8/x^2-4x+4 | | -7x-2y=-16 | | 3b^3-135b^2-588b=0 | | 138v=30v | | S^2-3s-28=0 | | 6+8n-4=9n+8-7n | | 1463*(11.8-X)=70 | | 65=z-15 | | -8(3b+1)+(25b-1)=0 | | f(x)=4x^3-11x^2-26x+24 | | 27x+7=115 | | 6x^3-9x^2+2x-3= | | (5/(x-3))+1=(30/(x^2-9)) | | 25w^2+70w+49=0 | | 4.8q-5.6-4.1q=-.3q-2.5 | | 14(4c+8)=3c-8 | | t(t+2)=80 | | 103/16-7/16 | | p^2=49p | | 0=-20+37t-16t^2 | | 8y+2y+3y= | | 9h^3=h | | 9h^3=9 | | w(w-2)=80 | | 9m+9m= | | 13d*0= | | 3*(4a)= | | 9y+6=7y | | 9+(12+c)= | | 2(x^(2/3))+3(x^(1/3))-2=0 | | 3(2z-4)=5(z/4) | | 24+(x+6)= |