If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + 10x + -9 = 0 Reorder the terms: -9 + 10x + -2x2 = 0 Solving -9 + 10x + -2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 4.5 + -5x + x2 = 0 Move the constant term to the right: Add '-4.5' to each side of the equation. 4.5 + -5x + -4.5 + x2 = 0 + -4.5 Reorder the terms: 4.5 + -4.5 + -5x + x2 = 0 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + -5x + x2 = 0 + -4.5 -5x + x2 = 0 + -4.5 Combine like terms: 0 + -4.5 = -4.5 -5x + x2 = -4.5 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -4.5 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -4.5 + 6.25 Combine like terms: -4.5 + 6.25 = 1.75 6.25 + -5x + x2 = 1.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 1.75 Calculate the square root of the right side: 1.322875656 Break this problem into two subproblems by setting (x + -2.5) equal to 1.322875656 and -1.322875656.Subproblem 1
x + -2.5 = 1.322875656 Simplifying x + -2.5 = 1.322875656 Reorder the terms: -2.5 + x = 1.322875656 Solving -2.5 + x = 1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 1.322875656 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 1.322875656 + 2.5 x = 1.322875656 + 2.5 Combine like terms: 1.322875656 + 2.5 = 3.822875656 x = 3.822875656 Simplifying x = 3.822875656Subproblem 2
x + -2.5 = -1.322875656 Simplifying x + -2.5 = -1.322875656 Reorder the terms: -2.5 + x = -1.322875656 Solving -2.5 + x = -1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -1.322875656 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -1.322875656 + 2.5 x = -1.322875656 + 2.5 Combine like terms: -1.322875656 + 2.5 = 1.177124344 x = 1.177124344 Simplifying x = 1.177124344Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.822875656, 1.177124344}
| 67-w=198 | | -w+236=116 | | 3x12/3^2 | | 6x+7z=3+5y | | x^-1/7=1/3 | | 18-m=60 | | 6Xx-3-2Xx+7=-163.6 | | 61=5u-9 | | 6Xx-3-2Xx+7=1369.2 | | 2n+15=5n | | 6Xx-3-2Xx+7=592 | | 2x-3=5y+8 | | 9n-36=18 | | 2p^2+2p-2=0 | | 6y+7v-16=-81 | | 6Xx-3-2Xx+7=24 | | 4m=15.6 | | 3x+42=13x-68 | | 2x(x-4)-5x=-5 | | 11+ln(x)=0 | | 4/3=t/7 | | 3p^2+p-3=0 | | 5x+20=10x+0 | | 7y-4z=2 | | (8x^3-6x^2+8x)-(7x^2+3x+3)= | | ln(11x)=11+ln(x) | | 7/3=4/t | | 2(2x+3)=3(x+3) | | 21=1g-3c | | 3h+4b=A | | z/12=4/5 | | 3*7+57=4 |