If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 15x2 + -44x + 21 = 9 Reorder the terms: 21 + -44x + 15x2 = 9 Solving 21 + -44x + 15x2 = 9 Solving for variable 'x'. Reorder the terms: 21 + -9 + -44x + 15x2 = 9 + -9 Combine like terms: 21 + -9 = 12 12 + -44x + 15x2 = 9 + -9 Combine like terms: 9 + -9 = 0 12 + -44x + 15x2 = 0 Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. 0.8 + -2.933333333x + x2 = 0 Move the constant term to the right: Add '-0.8' to each side of the equation. 0.8 + -2.933333333x + -0.8 + x2 = 0 + -0.8 Reorder the terms: 0.8 + -0.8 + -2.933333333x + x2 = 0 + -0.8 Combine like terms: 0.8 + -0.8 = 0.0 0.0 + -2.933333333x + x2 = 0 + -0.8 -2.933333333x + x2 = 0 + -0.8 Combine like terms: 0 + -0.8 = -0.8 -2.933333333x + x2 = -0.8 The x term is -2.933333333x. Take half its coefficient (-1.466666667). Square it (2.151111112) and add it to both sides. Add '2.151111112' to each side of the equation. -2.933333333x + 2.151111112 + x2 = -0.8 + 2.151111112 Reorder the terms: 2.151111112 + -2.933333333x + x2 = -0.8 + 2.151111112 Combine like terms: -0.8 + 2.151111112 = 1.351111112 2.151111112 + -2.933333333x + x2 = 1.351111112 Factor a perfect square on the left side: (x + -1.466666667)(x + -1.466666667) = 1.351111112 Calculate the square root of the right side: 1.162373052 Break this problem into two subproblems by setting (x + -1.466666667) equal to 1.162373052 and -1.162373052.Subproblem 1
x + -1.466666667 = 1.162373052 Simplifying x + -1.466666667 = 1.162373052 Reorder the terms: -1.466666667 + x = 1.162373052 Solving -1.466666667 + x = 1.162373052 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.466666667' to each side of the equation. -1.466666667 + 1.466666667 + x = 1.162373052 + 1.466666667 Combine like terms: -1.466666667 + 1.466666667 = 0.000000000 0.000000000 + x = 1.162373052 + 1.466666667 x = 1.162373052 + 1.466666667 Combine like terms: 1.162373052 + 1.466666667 = 2.629039719 x = 2.629039719 Simplifying x = 2.629039719Subproblem 2
x + -1.466666667 = -1.162373052 Simplifying x + -1.466666667 = -1.162373052 Reorder the terms: -1.466666667 + x = -1.162373052 Solving -1.466666667 + x = -1.162373052 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.466666667' to each side of the equation. -1.466666667 + 1.466666667 + x = -1.162373052 + 1.466666667 Combine like terms: -1.466666667 + 1.466666667 = 0.000000000 0.000000000 + x = -1.162373052 + 1.466666667 x = -1.162373052 + 1.466666667 Combine like terms: -1.162373052 + 1.466666667 = 0.304293615 x = 0.304293615 Simplifying x = 0.304293615Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.629039719, 0.304293615}
| C-72=-c^2 | | f(x)=3x^5-6x^4+8x^3-16x^2-35x+70 | | 2n+7=n+n-3 | | 43/x=18/100 | | 3(x+5)=-2(6-2x) | | (n+7)(n-2)= | | 24x+30=6x | | 5+x+x+x+x+x=x+x+9+x | | 9x-3=2x+39 | | 8m^3-12m^2+6m-1=0 | | 12y+60=-3y | | 3x-45=73 | | 5u+2=6u-4 | | 5(x-3)=4.5 | | 8x-6=34+6x | | 8(a+4)=66.4 | | 2/3x-5+1/2x-3 | | 2+5+x+x=18+3x | | -2x+49=5x | | 9X+21=5X+5 | | -5p-3=-2p-12 | | 2/x+3/x^2 | | 2x+4(x+1)=52 | | (x^2+3x)/(x+1) | | 0.2=4c-7 | | 3xn-23=34 | | 5-(6-18)+(-10)= | | 8e-6=30 | | ln(12)= | | 2/3x=38 | | X^2+2/3x-1/3=0 | | 5x/9-2x-1/3=4/15 |