If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 21x + -64 = 0 Reorder the terms: -64 + 21x + 7x2 = 0 Solving -64 + 21x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -9.142857143 + 3x + x2 = 0 Move the constant term to the right: Add '9.142857143' to each side of the equation. -9.142857143 + 3x + 9.142857143 + x2 = 0 + 9.142857143 Reorder the terms: -9.142857143 + 9.142857143 + 3x + x2 = 0 + 9.142857143 Combine like terms: -9.142857143 + 9.142857143 = 0.000000000 0.000000000 + 3x + x2 = 0 + 9.142857143 3x + x2 = 0 + 9.142857143 Combine like terms: 0 + 9.142857143 = 9.142857143 3x + x2 = 9.142857143 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = 9.142857143 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 9.142857143 + 2.25 Combine like terms: 9.142857143 + 2.25 = 11.392857143 2.25 + 3x + x2 = 11.392857143 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 11.392857143 Calculate the square root of the right side: 3.375330672 Break this problem into two subproblems by setting (x + 1.5) equal to 3.375330672 and -3.375330672.Subproblem 1
x + 1.5 = 3.375330672 Simplifying x + 1.5 = 3.375330672 Reorder the terms: 1.5 + x = 3.375330672 Solving 1.5 + x = 3.375330672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 3.375330672 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 3.375330672 + -1.5 x = 3.375330672 + -1.5 Combine like terms: 3.375330672 + -1.5 = 1.875330672 x = 1.875330672 Simplifying x = 1.875330672Subproblem 2
x + 1.5 = -3.375330672 Simplifying x + 1.5 = -3.375330672 Reorder the terms: 1.5 + x = -3.375330672 Solving 1.5 + x = -3.375330672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -3.375330672 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -3.375330672 + -1.5 x = -3.375330672 + -1.5 Combine like terms: -3.375330672 + -1.5 = -4.875330672 x = -4.875330672 Simplifying x = -4.875330672Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.875330672, -4.875330672}
| 8*4+4=32 | | 5/2/15a=3/2/25 | | 4.9t^2-12.86t-2=0 | | -5+81n^2=11 | | 52/15a=32/25 | | 1.1a+3=0.712 | | 0.42x-1.2=7.2 | | 6-3(2x-1)=4 | | (3x^3+4x^2-4x)*(x^2+2x)= | | 100=9x | | 4.9t^2-19.4t+3.5=0 | | R^2+56=-15r | | y=5x^2-10x+3 | | 5-(11-2x)=7x+7 | | 4.9t^2-12.86t+3.5=0 | | w-5/w+3=w-5/w+1+1 | | s/3-2=-4 | | X+3/3=x | | y^2-10y+41=0 | | 2(x+2)=1+3(1-x) | | -2.6=14.3-x | | 5x^2+4x+5y^2-10y+12=0 | | (2x^4+x^3+3x^2+4x-2)*(x-3)= | | 9x3/5=8/11w | | 10t+1=2(3t+5)-1 | | V+(v-32.4)+(v+27.6)=197.4 | | 3(x+2.21)=2x | | 165=-3(1-8p) | | z+y=3 | | -4(x+2)-11=12+1 | | 300-140x=3860x-20 | | 3/7+y=-3/14 |