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 + 4x + 9 Reorder the terms: 0 = 9 + 4x + -7x2 Solving 0 = 9 + 4x + -7x2 Solving for variable 'x'. Combine like terms: 0 + -9 = -9 -9 + -4x + 7x2 = 9 + 4x + -7x2 + -9 + -4x + 7x2 Reorder the terms: -9 + -4x + 7x2 = 9 + -9 + 4x + -4x + -7x2 + 7x2 Combine like terms: 9 + -9 = 0 -9 + -4x + 7x2 = 0 + 4x + -4x + -7x2 + 7x2 -9 + -4x + 7x2 = 4x + -4x + -7x2 + 7x2 Combine like terms: 4x + -4x = 0 -9 + -4x + 7x2 = 0 + -7x2 + 7x2 -9 + -4x + 7x2 = -7x2 + 7x2 Combine like terms: -7x2 + 7x2 = 0 -9 + -4x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.285714286 + -0.5714285714x + x2 = 0 Move the constant term to the right: Add '1.285714286' to each side of the equation. -1.285714286 + -0.5714285714x + 1.285714286 + x2 = 0 + 1.285714286 Reorder the terms: -1.285714286 + 1.285714286 + -0.5714285714x + x2 = 0 + 1.285714286 Combine like terms: -1.285714286 + 1.285714286 = 0.000000000 0.000000000 + -0.5714285714x + x2 = 0 + 1.285714286 -0.5714285714x + x2 = 0 + 1.285714286 Combine like terms: 0 + 1.285714286 = 1.285714286 -0.5714285714x + x2 = 1.285714286 The x term is -0.5714285714x. Take half its coefficient (-0.2857142857). Square it (0.08163265305) and add it to both sides. Add '0.08163265305' to each side of the equation. -0.5714285714x + 0.08163265305 + x2 = 1.285714286 + 0.08163265305 Reorder the terms: 0.08163265305 + -0.5714285714x + x2 = 1.285714286 + 0.08163265305 Combine like terms: 1.285714286 + 0.08163265305 = 1.36734693905 0.08163265305 + -0.5714285714x + x2 = 1.36734693905 Factor a perfect square on the left side: (x + -0.2857142857)(x + -0.2857142857) = 1.36734693905 Calculate the square root of the right side: 1.16933611 Break this problem into two subproblems by setting (x + -0.2857142857) equal to 1.16933611 and -1.16933611.Subproblem 1
x + -0.2857142857 = 1.16933611 Simplifying x + -0.2857142857 = 1.16933611 Reorder the terms: -0.2857142857 + x = 1.16933611 Solving -0.2857142857 + x = 1.16933611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2857142857' to each side of the equation. -0.2857142857 + 0.2857142857 + x = 1.16933611 + 0.2857142857 Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000 0.0000000000 + x = 1.16933611 + 0.2857142857 x = 1.16933611 + 0.2857142857 Combine like terms: 1.16933611 + 0.2857142857 = 1.4550503957 x = 1.4550503957 Simplifying x = 1.4550503957Subproblem 2
x + -0.2857142857 = -1.16933611 Simplifying x + -0.2857142857 = -1.16933611 Reorder the terms: -0.2857142857 + x = -1.16933611 Solving -0.2857142857 + x = -1.16933611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2857142857' to each side of the equation. -0.2857142857 + 0.2857142857 + x = -1.16933611 + 0.2857142857 Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000 0.0000000000 + x = -1.16933611 + 0.2857142857 x = -1.16933611 + 0.2857142857 Combine like terms: -1.16933611 + 0.2857142857 = -0.8836218243 x = -0.8836218243 Simplifying x = -0.8836218243Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.4550503957, -0.8836218243}
| 3y/5-24y | | 2(x-4)-1=4x-2(2+x) | | -10*0+2y=-20 | | -5(t-4)+7t=5t-4 | | -16x^2-8x+3=0 | | -10*x+2y=-20 | | 2pq=54 | | -5x-12(x+9)=-2(8x+6) | | -100+-25x=-725 | | y=6.25/4+5 | | -100+-25x=-300 | | 3X-3=10-87 | | 10X+46=10X+10 | | 7p+51= | | 8x+2/5=9x+1/5 | | 4(x+3)/3=2x-3 | | 7x=(315/6) | | 9(t-6)+5t=7(2t+2)-12 | | 4x=4(10-6x) | | 2pq=0.02 | | -1/3-5/6x+2=-5/9x | | t^4-4r^2=0 | | 4x+31-7x+69=58 | | x-7.3=-3.8 | | 3(3x+1)=3x-15 | | 7z-6=z+24 | | n+38=24 | | 22+3x-2x+17=65 | | -8x+5*0=-40 | | 29+2x-6x+76=41 | | 3*2y/2=9 | | -8*0+5y=-40 |