If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4x2 + 8x + 9 = 0 Reorder the terms: 9 + 8x + -4x2 = 0 Solving 9 + 8x + -4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -2.25 + -2x + x2 = 0 Move the constant term to the right: Add '2.25' to each side of the equation. -2.25 + -2x + 2.25 + x2 = 0 + 2.25 Reorder the terms: -2.25 + 2.25 + -2x + x2 = 0 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + -2x + x2 = 0 + 2.25 -2x + x2 = 0 + 2.25 Combine like terms: 0 + 2.25 = 2.25 -2x + x2 = 2.25 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 2.25 + 1 Reorder the terms: 1 + -2x + x2 = 2.25 + 1 Combine like terms: 2.25 + 1 = 3.25 1 + -2x + x2 = 3.25 Factor a perfect square on the left side: (x + -1)(x + -1) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (x + -1) equal to 1.802775638 and -1.802775638.Subproblem 1
x + -1 = 1.802775638 Simplifying x + -1 = 1.802775638 Reorder the terms: -1 + x = 1.802775638 Solving -1 + x = 1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 1.802775638 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.802775638 + 1 x = 1.802775638 + 1 Combine like terms: 1.802775638 + 1 = 2.802775638 x = 2.802775638 Simplifying x = 2.802775638Subproblem 2
x + -1 = -1.802775638 Simplifying x + -1 = -1.802775638 Reorder the terms: -1 + x = -1.802775638 Solving -1 + x = -1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -1.802775638 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.802775638 + 1 x = -1.802775638 + 1 Combine like terms: -1.802775638 + 1 = -0.802775638 x = -0.802775638 Simplifying x = -0.802775638Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.802775638, -0.802775638}
| 3d+4d=2.45 | | 24x^5=4x^3 | | 12.04=3s+s | | 10x*2-50x-40= | | 24x^2=4x^2 | | W+w=24.6 | | 30=12w+3w | | (21x+3)+(14x+2)= | | 17w+5w=88 | | 120=9n+6n | | T+2t=39 | | 32=c+c | | 64k^2-36=0 | | 6t+2+3t+17= | | -2u^2+2=0 | | 2(x+17)=10x-18 | | 4x+5=9x-13 | | -5w^2+30w+80=0 | | -3x=0.33-6 | | 5u^2+26u-24=0 | | -2v^2+32=0 | | x+30=3x | | 12.1=v-8.93 | | x+30+3x=180 | | 340=20r | | 16w=432 | | 10a^2=32+32a | | 3u^2+22u+35=0 | | 79=y-37 | | -2/9= | | -20/90= | | 2x+30=4x-50 |