If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0.4x2 + -8x + 30 = 0 Reorder the terms: 30 + -8x + 0.4x2 = 0 Solving 30 + -8x + 0.4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.4 the coefficient of the squared term: Divide each side by '0.4'. 75 + -20x + x2 = 0 Move the constant term to the right: Add '-75' to each side of the equation. 75 + -20x + -75 + x2 = 0 + -75 Reorder the terms: 75 + -75 + -20x + x2 = 0 + -75 Combine like terms: 75 + -75 = 0 0 + -20x + x2 = 0 + -75 -20x + x2 = 0 + -75 Combine like terms: 0 + -75 = -75 -20x + x2 = -75 The x term is -20x. Take half its coefficient (-10). Square it (100) and add it to both sides. Add '100' to each side of the equation. -20x + 100 + x2 = -75 + 100 Reorder the terms: 100 + -20x + x2 = -75 + 100 Combine like terms: -75 + 100 = 25 100 + -20x + x2 = 25 Factor a perfect square on the left side: (x + -10)(x + -10) = 25 Calculate the square root of the right side: 5 Break this problem into two subproblems by setting (x + -10) equal to 5 and -5.Subproblem 1
x + -10 = 5 Simplifying x + -10 = 5 Reorder the terms: -10 + x = 5 Solving -10 + x = 5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = 5 + 10 Combine like terms: -10 + 10 = 0 0 + x = 5 + 10 x = 5 + 10 Combine like terms: 5 + 10 = 15 x = 15 Simplifying x = 15Subproblem 2
x + -10 = -5 Simplifying x + -10 = -5 Reorder the terms: -10 + x = -5 Solving -10 + x = -5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = -5 + 10 Combine like terms: -10 + 10 = 0 0 + x = -5 + 10 x = -5 + 10 Combine like terms: -5 + 10 = 5 x = 5 Simplifying x = 5Solution
The solution to the problem is based on the solutions from the subproblems. x = {15, 5}
| .06x-.07x=.90 | | 4(2+4y)=6y+7 | | 3w+4=12+3w | | 3-2b=-17 | | (-w+7)(5w-1)=0 | | 11+2(3w-1)=15w | | 6x^2=4x+8 | | -9=3-x | | 4x-7(x-9)=13x | | =2a-6+4b-2a+2b+6+5 | | 6(w-5)-3=w+10 | | 8v-1=9v | | 3(5x-4)+19=15(x+1) | | 18=0.5(et-t-1) | | 4x+2x-3x=6x+14-x | | 27=3d-3(6-2d) | | 7x-2=3x-2 | | 6x^3+10x-9x^2-15= | | ln(37+x)=x | | (x-5)2+9=0 | | -x^4-125x=0 | | 5x+15=10x+30 | | 7t^4-12t^2-27= | | x-8y=-18 | | 42x^3+128x^2+70x= | | 63t^2+42t+7=0 | | 5(x-4)+3x-9x=6-2x-5+8x | | -6x-11=2x+5 | | xt+xy+wt+wy=0 | | 11x-7=9-5x | | -15x-10-x+3=-16x-20+13 | | -18h^3+48h^2y-32hy^2= |