If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + -2x + -21 = 0 Reorder the terms: -21 + -2x + 2x2 = 0 Solving -21 + -2x + 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'. -10.5 + -1x + x2 = 0 Move the constant term to the right: Add '10.5' to each side of the equation. -10.5 + -1x + 10.5 + x2 = 0 + 10.5 Reorder the terms: -10.5 + 10.5 + -1x + x2 = 0 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + -1x + x2 = 0 + 10.5 -1x + x2 = 0 + 10.5 Combine like terms: 0 + 10.5 = 10.5 -1x + x2 = 10.5 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = 10.5 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 10.5 + 0.25 Combine like terms: 10.5 + 0.25 = 10.75 0.25 + -1x + x2 = 10.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 10.75 Calculate the square root of the right side: 3.278719262 Break this problem into two subproblems by setting (x + -0.5) equal to 3.278719262 and -3.278719262.Subproblem 1
x + -0.5 = 3.278719262 Simplifying x + -0.5 = 3.278719262 Reorder the terms: -0.5 + x = 3.278719262 Solving -0.5 + x = 3.278719262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 3.278719262 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 3.278719262 + 0.5 x = 3.278719262 + 0.5 Combine like terms: 3.278719262 + 0.5 = 3.778719262 x = 3.778719262 Simplifying x = 3.778719262Subproblem 2
x + -0.5 = -3.278719262 Simplifying x + -0.5 = -3.278719262 Reorder the terms: -0.5 + x = -3.278719262 Solving -0.5 + x = -3.278719262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -3.278719262 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -3.278719262 + 0.5 x = -3.278719262 + 0.5 Combine like terms: -3.278719262 + 0.5 = -2.778719262 x = -2.778719262 Simplifying x = -2.778719262Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.778719262, -2.778719262}
| 5x+7=3x+6x-36 | | .50x+.25(70)=31.5 | | .50+.25(70)=31.5 | | 5-x=y(400) | | 19-4x=-6x+11 | | -9b+6+7b=-3b+6 | | 5g-7=3g+2 | | 7z(z+4)=7z^2+28z-6 | | 13x-5=4x-x^2-14 | | 12=2a+6b-10c | | y-2.64=9.56 | | 2(x+3)+4x=49 | | 8a+16=-4a-16 | | 5(x+3)7=385 | | 3.8x=29.26 | | 3(x+5)-7=5x-2(-3+x) | | 0.04(y-4)+0.12y=0.02y-0.3 | | x+2x+(1+7x)=21 | | 4r+2=3r | | 6p^2-9=-15p | | 5X+9-6x=x+10 | | 5(x+3)*7=385 | | -f(x)=x | | ln(x+4)=ln(x-9)-ln(x+9) | | n^2+10n=-9 | | x-x+70=24 | | 3.7(x)=11x-1 | | 5x^4-10x^3+20x^2= | | 3(t+-14)-5(t+12)= | | X+(x+12)=36 | | Y^2-3Y=15 | | 4r-2r=3 |