If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -5(x2 + -4) + 7 = 2x + 9 Reorder the terms: -5(-4 + x2) + 7 = 2x + 9 (-4 * -5 + x2 * -5) + 7 = 2x + 9 (20 + -5x2) + 7 = 2x + 9 Reorder the terms: 20 + 7 + -5x2 = 2x + 9 Combine like terms: 20 + 7 = 27 27 + -5x2 = 2x + 9 Reorder the terms: 27 + -5x2 = 9 + 2x Solving 27 + -5x2 = 9 + 2x Solving for variable 'x'. Reorder the terms: 27 + -9 + -2x + -5x2 = 9 + 2x + -9 + -2x Combine like terms: 27 + -9 = 18 18 + -2x + -5x2 = 9 + 2x + -9 + -2x Reorder the terms: 18 + -2x + -5x2 = 9 + -9 + 2x + -2x Combine like terms: 9 + -9 = 0 18 + -2x + -5x2 = 0 + 2x + -2x 18 + -2x + -5x2 = 2x + -2x Combine like terms: 2x + -2x = 0 18 + -2x + -5x2 = 0 Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. -3.6 + 0.4x + x2 = 0 Move the constant term to the right: Add '3.6' to each side of the equation. -3.6 + 0.4x + 3.6 + x2 = 0 + 3.6 Reorder the terms: -3.6 + 3.6 + 0.4x + x2 = 0 + 3.6 Combine like terms: -3.6 + 3.6 = 0.0 0.0 + 0.4x + x2 = 0 + 3.6 0.4x + x2 = 0 + 3.6 Combine like terms: 0 + 3.6 = 3.6 0.4x + x2 = 3.6 The x term is 0.4x. Take half its coefficient (0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. 0.4x + 0.04 + x2 = 3.6 + 0.04 Reorder the terms: 0.04 + 0.4x + x2 = 3.6 + 0.04 Combine like terms: 3.6 + 0.04 = 3.64 0.04 + 0.4x + x2 = 3.64 Factor a perfect square on the left side: (x + 0.2)(x + 0.2) = 3.64 Calculate the square root of the right side: 1.907878403 Break this problem into two subproblems by setting (x + 0.2) equal to 1.907878403 and -1.907878403.Subproblem 1
x + 0.2 = 1.907878403 Simplifying x + 0.2 = 1.907878403 Reorder the terms: 0.2 + x = 1.907878403 Solving 0.2 + x = 1.907878403 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 1.907878403 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 1.907878403 + -0.2 x = 1.907878403 + -0.2 Combine like terms: 1.907878403 + -0.2 = 1.707878403 x = 1.707878403 Simplifying x = 1.707878403Subproblem 2
x + 0.2 = -1.907878403 Simplifying x + 0.2 = -1.907878403 Reorder the terms: 0.2 + x = -1.907878403 Solving 0.2 + x = -1.907878403 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -1.907878403 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -1.907878403 + -0.2 x = -1.907878403 + -0.2 Combine like terms: -1.907878403 + -0.2 = -2.107878403 x = -2.107878403 Simplifying x = -2.107878403Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.707878403, -2.107878403}
| 2lnx+3lnx+5lnx=10 | | v/2=7 | | -5(x^2-4)+7=2+9 | | 1000(9x-10)=50(848+100x) | | 2r=-10r-8(1-2r) | | 3x-4(2x-5)-5x=3x+7 | | 25x+15y=28000 | | (2-3x)-(4x-7)= | | 2w-2x-y+7w+14x-7y= | | 12-(4-3x)=21 | | 2(x+4)=9x+7-7x+1 | | 7x-2y+12w+6y-3w+5x= | | 4g+12=1g+2 | | 6n+3n=9 | | 2m^2+2n^2-6m-2n-8=0 | | 6w+7y+3x+9x-15y+3w= | | (3x-1)(ax+b)=12x^2-19x+c | | 12-(14-3x)=21 | | 2w+2x-11y+7w+10x+3y= | | 120=-8-8(p-8) | | (3x-1)(ax+b)= | | 1520-40y=1150+28y | | i=ec/3 | | x^2+3x+5=3 | | 2x^2-4x+2-3x-3=1 | | (-3a+2)-3(5a+7)= | | 8x-1283x+27=108 | | 9x+9+3x+2=12x+15 | | y-7/5=8/5 | | 2x+101+8x-111=180 | | 17+x=-15 | | -10(a+2)= |