If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + -28x + 39 = 0 Reorder the terms: 39 + -28x + 4x2 = 0 Solving 39 + -28x + 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'. 9.75 + -7x + x2 = 0 Move the constant term to the right: Add '-9.75' to each side of the equation. 9.75 + -7x + -9.75 + x2 = 0 + -9.75 Reorder the terms: 9.75 + -9.75 + -7x + x2 = 0 + -9.75 Combine like terms: 9.75 + -9.75 = 0.00 0.00 + -7x + x2 = 0 + -9.75 -7x + x2 = 0 + -9.75 Combine like terms: 0 + -9.75 = -9.75 -7x + x2 = -9.75 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = -9.75 + 12.25 Reorder the terms: 12.25 + -7x + x2 = -9.75 + 12.25 Combine like terms: -9.75 + 12.25 = 2.5 12.25 + -7x + x2 = 2.5 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = 2.5 Calculate the square root of the right side: 1.58113883 Break this problem into two subproblems by setting (x + -3.5) equal to 1.58113883 and -1.58113883.Subproblem 1
x + -3.5 = 1.58113883 Simplifying x + -3.5 = 1.58113883 Reorder the terms: -3.5 + x = 1.58113883 Solving -3.5 + x = 1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 1.58113883 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 1.58113883 + 3.5 x = 1.58113883 + 3.5 Combine like terms: 1.58113883 + 3.5 = 5.08113883 x = 5.08113883 Simplifying x = 5.08113883Subproblem 2
x + -3.5 = -1.58113883 Simplifying x + -3.5 = -1.58113883 Reorder the terms: -3.5 + x = -1.58113883 Solving -3.5 + x = -1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -1.58113883 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -1.58113883 + 3.5 x = -1.58113883 + 3.5 Combine like terms: -1.58113883 + 3.5 = 1.91886117 x = 1.91886117 Simplifying x = 1.91886117Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.08113883, 1.91886117}
| 5x+10=5x^0 | | 7x-5(x-4)=-20 | | 20=5y+10x | | -9+3x=-4+3(x-2) | | 5p+7=12p | | 10x+4(x-2)=12x+7(x+3) | | 5x-6=5x-7 | | -8=6-(8-z) | | 71+20=320 | | 6+4x+1+2x=4+7x | | 8+(-16)=4x-8-3x | | 6y-8=180 | | -7x+[-4x+(-2+4x)]-5x+1=0 | | 5x-4(2x+15)=25 | | -6r-9r+5r= | | 2(-8x)+8=80 | | -39+6r=3(-r-4) | | 8x-8=3x+8 | | 5(2c+7)-3=7(c+5) | | f(-3)=2x^2+5x-1 | | 2.4m+24=6.4 | | -11+6p=1-p+3p | | 0.10x+.05(2-x)=.10(-2) | | 5-8=n-2+19 | | 7-5n=2n-6n+15 | | 5=-7k+10k | | b-8+6b+10=30 | | 2(4c-1)-2=4c+8 | | -4x-20=-10x+4 | | 3x-60=75 | | 4Y-3=10Y+21 | | 2x^2+2x-339=0 |