If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4.9x2 + 15x + 18 = 0 Reorder the terms: 18 + 15x + -4.9x2 = 0 Solving 18 + 15x + -4.9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -4.9 the coefficient of the squared term: Divide each side by '-4.9'. -3.673469388 + -3.06122449x + x2 = 0 Move the constant term to the right: Add '3.673469388' to each side of the equation. -3.673469388 + -3.06122449x + 3.673469388 + x2 = 0 + 3.673469388 Reorder the terms: -3.673469388 + 3.673469388 + -3.06122449x + x2 = 0 + 3.673469388 Combine like terms: -3.673469388 + 3.673469388 = 0.000000000 0.000000000 + -3.06122449x + x2 = 0 + 3.673469388 -3.06122449x + x2 = 0 + 3.673469388 Combine like terms: 0 + 3.673469388 = 3.673469388 -3.06122449x + x2 = 3.673469388 The x term is -3.06122449x. Take half its coefficient (-1.530612245). Square it (2.342773845) and add it to both sides. Add '2.342773845' to each side of the equation. -3.06122449x + 2.342773845 + x2 = 3.673469388 + 2.342773845 Reorder the terms: 2.342773845 + -3.06122449x + x2 = 3.673469388 + 2.342773845 Combine like terms: 3.673469388 + 2.342773845 = 6.016243233 2.342773845 + -3.06122449x + x2 = 6.016243233 Factor a perfect square on the left side: (x + -1.530612245)(x + -1.530612245) = 6.016243233 Calculate the square root of the right side: 2.452803138 Break this problem into two subproblems by setting (x + -1.530612245) equal to 2.452803138 and -2.452803138.Subproblem 1
x + -1.530612245 = 2.452803138 Simplifying x + -1.530612245 = 2.452803138 Reorder the terms: -1.530612245 + x = 2.452803138 Solving -1.530612245 + x = 2.452803138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.530612245' to each side of the equation. -1.530612245 + 1.530612245 + x = 2.452803138 + 1.530612245 Combine like terms: -1.530612245 + 1.530612245 = 0.000000000 0.000000000 + x = 2.452803138 + 1.530612245 x = 2.452803138 + 1.530612245 Combine like terms: 2.452803138 + 1.530612245 = 3.983415383 x = 3.983415383 Simplifying x = 3.983415383Subproblem 2
x + -1.530612245 = -2.452803138 Simplifying x + -1.530612245 = -2.452803138 Reorder the terms: -1.530612245 + x = -2.452803138 Solving -1.530612245 + x = -2.452803138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.530612245' to each side of the equation. -1.530612245 + 1.530612245 + x = -2.452803138 + 1.530612245 Combine like terms: -1.530612245 + 1.530612245 = 0.000000000 0.000000000 + x = -2.452803138 + 1.530612245 x = -2.452803138 + 1.530612245 Combine like terms: -2.452803138 + 1.530612245 = -0.922190893 x = -0.922190893 Simplifying x = -0.922190893Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.983415383, -0.922190893}
| -19n+10=-17n-18 | | -5(3b+2)+(16b-5)=0 | | 3/2(1+3r) | | 0.18(2x)+0.10x=230 | | 4y-7=2y+3 | | w-7=29 | | 4m+5m-9=-6(m+4)-6 | | 2(5a+1)+2(a+1)=90 | | 5(x+3)+14=6(x+2)+15 | | 11y/1y/2x | | 0.02(4000)+0.05x=0.04(x+4000) | | 8+Y=11 | | 4+2x4-18/3 | | 3x^2=4x+y | | -28-3x=5x+10 | | 77y=38(2y+6) | | c+3/4=-1/4 | | p+18=19 | | 9*x=180*x | | 26+x+x=180 | | 82-2x=14-10x | | -2(3s-3)-6=-2(9s+1)-2 | | 12-45=3(x-4)-9 | | x^3+9x-5x^2-45= | | 0.05+0.04(x-6000)=1200 | | -(6x-4)-(2x-3)+5=-7(x-2)-(6x+4)+8 | | y-32-y=5y-y | | 0.04+0.05(x-6000)=1200 | | 9(2x-6)=3(6x+4) | | 3/13x=18 | | 0.05+0.04(6000-x)=1200 | | 0.04+0.05(6000-x)=1200 |