If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 80 + -1(10 + -2x)(8 + -2x) = 38.75 Multiply (10 + -2x) * (8 + -2x) 80 + -1(10(8 + -2x) + -2x * (8 + -2x)) = 38.75 80 + -1((8 * 10 + -2x * 10) + -2x * (8 + -2x)) = 38.75 80 + -1((80 + -20x) + -2x * (8 + -2x)) = 38.75 80 + -1(80 + -20x + (8 * -2x + -2x * -2x)) = 38.75 80 + -1(80 + -20x + (-16x + 4x2)) = 38.75 Combine like terms: -20x + -16x = -36x 80 + -1(80 + -36x + 4x2) = 38.75 80 + (80 * -1 + -36x * -1 + 4x2 * -1) = 38.75 80 + (-80 + 36x + -4x2) = 38.75 Combine like terms: 80 + -80 = 0 0 + 36x + -4x2 = 38.75 36x + -4x2 = 38.75 Solving 36x + -4x2 = 38.75 Solving for variable 'x'. Reorder the terms: -38.75 + 36x + -4x2 = 38.75 + -38.75 Combine like terms: 38.75 + -38.75 = 0.00 -38.75 + 36x + -4x2 = 0.00 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. 9.6875 + -9x + x2 = 0.00 Move the constant term to the right: Add '-9.6875' to each side of the equation. 9.6875 + -9x + -9.6875 + x2 = 0.00 + -9.6875 Reorder the terms: 9.6875 + -9.6875 + -9x + x2 = 0.00 + -9.6875 Combine like terms: 9.6875 + -9.6875 = 0.0000 0.0000 + -9x + x2 = 0.00 + -9.6875 -9x + x2 = 0.00 + -9.6875 Combine like terms: 0.00 + -9.6875 = -9.6875 -9x + x2 = -9.6875 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = -9.6875 + 20.25 Reorder the terms: 20.25 + -9x + x2 = -9.6875 + 20.25 Combine like terms: -9.6875 + 20.25 = 10.5625 20.25 + -9x + x2 = 10.5625 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = 10.5625 Calculate the square root of the right side: 3.25 Break this problem into two subproblems by setting (x + -4.5) equal to 3.25 and -3.25.Subproblem 1
x + -4.5 = 3.25 Simplifying x + -4.5 = 3.25 Reorder the terms: -4.5 + x = 3.25 Solving -4.5 + x = 3.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 3.25 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 3.25 + 4.5 x = 3.25 + 4.5 Combine like terms: 3.25 + 4.5 = 7.75 x = 7.75 Simplifying x = 7.75Subproblem 2
x + -4.5 = -3.25 Simplifying x + -4.5 = -3.25 Reorder the terms: -4.5 + x = -3.25 Solving -4.5 + x = -3.25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -3.25 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -3.25 + 4.5 x = -3.25 + 4.5 Combine like terms: -3.25 + 4.5 = 1.25 x = 1.25 Simplifying x = 1.25Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.75, 1.25}
| 80-(10-2x)*(8-2x)=37.75 | | 9x+8.68=5x+16 | | 5x-7+6=8x+6 | | 3x^2-6x+17=0 | | 43.4-7b=-5.6 | | 16=y | | 4z/z^2 | | 9x+8-8x=11 | | 5/6-2m/2m+3=19/6 | | -42=t | | 8x(-3)+4y=-20 | | 11.6-4.6(x+1.4)=12-5(x+1) | | 4.1x+3.83=-27.33 | | x+12/x-8=0 | | -21+7=m-1 | | 3x+8+4=7x | | 12+11x=45 | | 25=y-6 | | -8(f)=49-f | | 2x^4+6x^3+4x^2=0 | | 4=4x+16 | | -8f=48-f | | 8(6-4x/3)=0 | | ((4x^2)/(2y^3))^2 | | 5+3/t=-2/t | | 2x^2+9x=4 | | F(x)=x^2+7x-120 | | X+3(3x-2)-x(6)=24 | | 12m-76=0 | | 8v^7w^7x^6-10v^9x^5=0 | | 17x-23+9=237 | | 6x(-4)+6y=-18 |