If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 15x(x + 1) + -7(x + 9) = 4x Reorder the terms: 15x(1 + x) + -7(x + 9) = 4x (1 * 15x + x * 15x) + -7(x + 9) = 4x (15x + 15x2) + -7(x + 9) = 4x Reorder the terms: 15x + 15x2 + -7(9 + x) = 4x 15x + 15x2 + (9 * -7 + x * -7) = 4x 15x + 15x2 + (-63 + -7x) = 4x Reorder the terms: -63 + 15x + -7x + 15x2 = 4x Combine like terms: 15x + -7x = 8x -63 + 8x + 15x2 = 4x Solving -63 + 8x + 15x2 = 4x Solving for variable 'x'. Reorder the terms: -63 + 8x + -4x + 15x2 = 4x + -4x Combine like terms: 8x + -4x = 4x -63 + 4x + 15x2 = 4x + -4x Combine like terms: 4x + -4x = 0 -63 + 4x + 15x2 = 0 Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. -4.2 + 0.2666666667x + x2 = 0 Move the constant term to the right: Add '4.2' to each side of the equation. -4.2 + 0.2666666667x + 4.2 + x2 = 0 + 4.2 Reorder the terms: -4.2 + 4.2 + 0.2666666667x + x2 = 0 + 4.2 Combine like terms: -4.2 + 4.2 = 0.0 0.0 + 0.2666666667x + x2 = 0 + 4.2 0.2666666667x + x2 = 0 + 4.2 Combine like terms: 0 + 4.2 = 4.2 0.2666666667x + x2 = 4.2 The x term is 0.2666666667x. Take half its coefficient (0.1333333334). Square it (0.01777777780) and add it to both sides. Add '0.01777777780' to each side of the equation. 0.2666666667x + 0.01777777780 + x2 = 4.2 + 0.01777777780 Reorder the terms: 0.01777777780 + 0.2666666667x + x2 = 4.2 + 0.01777777780 Combine like terms: 4.2 + 0.01777777780 = 4.2177777778 0.01777777780 + 0.2666666667x + x2 = 4.2177777778 Factor a perfect square on the left side: (x + 0.1333333334)(x + 0.1333333334) = 4.2177777778 Calculate the square root of the right side: 2.053722907 Break this problem into two subproblems by setting (x + 0.1333333334) equal to 2.053722907 and -2.053722907.Subproblem 1
x + 0.1333333334 = 2.053722907 Simplifying x + 0.1333333334 = 2.053722907 Reorder the terms: 0.1333333334 + x = 2.053722907 Solving 0.1333333334 + x = 2.053722907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1333333334' to each side of the equation. 0.1333333334 + -0.1333333334 + x = 2.053722907 + -0.1333333334 Combine like terms: 0.1333333334 + -0.1333333334 = 0.0000000000 0.0000000000 + x = 2.053722907 + -0.1333333334 x = 2.053722907 + -0.1333333334 Combine like terms: 2.053722907 + -0.1333333334 = 1.9203895736 x = 1.9203895736 Simplifying x = 1.9203895736Subproblem 2
x + 0.1333333334 = -2.053722907 Simplifying x + 0.1333333334 = -2.053722907 Reorder the terms: 0.1333333334 + x = -2.053722907 Solving 0.1333333334 + x = -2.053722907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1333333334' to each side of the equation. 0.1333333334 + -0.1333333334 + x = -2.053722907 + -0.1333333334 Combine like terms: 0.1333333334 + -0.1333333334 = 0.0000000000 0.0000000000 + x = -2.053722907 + -0.1333333334 x = -2.053722907 + -0.1333333334 Combine like terms: -2.053722907 + -0.1333333334 = -2.1870562404 x = -2.1870562404 Simplifying x = -2.1870562404Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.9203895736, -2.1870562404}
| X+2X-2=3X-2 | | 7s-82+s=8s-93 | | 50=(3x-20) | | b+4b=54 | | 2x-8=34 | | 5xh= | | Tx+3w=2x-7 | | h^5=-9 | | 66(32)=900x | | -5g+2.3=-1.8 | | S^2=-2s-63 | | 3(3x-8)+6=9x-18 | | 73+x-11+x=180 | | t+52=10t-92 | | 2x^3/4-2=160 | | -12-q=7 | | z+3z=28 | | 0=((x^2)-2x)/(4x-8) | | 19y-6[3+5]= | | C+66=54 | | 69+7x=75+5x | | 42=7v(z-3) | | 48+x+-44=180 | | (6x+8)=(4x+12) | | 27•5/9 | | -7p-8(10+7p)=-8p-10(p+8) | | 7w-14w=56 | | 2n-10=17n | | X-0.15x=34 | | C+54=56 | | -6f=-54 | | 3a+a=16-2a |