If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (7x + -1)(0.4x + -4) = 0 Reorder the terms: (-1 + 7x)(0.4x + -4) = 0 Reorder the terms: (-1 + 7x)(-4 + 0.4x) = 0 Multiply (-1 + 7x) * (-4 + 0.4x) (-1(-4 + 0.4x) + 7x * (-4 + 0.4x)) = 0 ((-4 * -1 + 0.4x * -1) + 7x * (-4 + 0.4x)) = 0 ((4 + -0.4x) + 7x * (-4 + 0.4x)) = 0 (4 + -0.4x + (-4 * 7x + 0.4x * 7x)) = 0 (4 + -0.4x + (-28x + 2.8x2)) = 0 Combine like terms: -0.4x + -28x = -28.4x (4 + -28.4x + 2.8x2) = 0 Solving 4 + -28.4x + 2.8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2.8 the coefficient of the squared term: Divide each side by '2.8'. 1.428571429 + -10.14285714x + x2 = 0 Move the constant term to the right: Add '-1.428571429' to each side of the equation. 1.428571429 + -10.14285714x + -1.428571429 + x2 = 0 + -1.428571429 Reorder the terms: 1.428571429 + -1.428571429 + -10.14285714x + x2 = 0 + -1.428571429 Combine like terms: 1.428571429 + -1.428571429 = 0.000000000 0.000000000 + -10.14285714x + x2 = 0 + -1.428571429 -10.14285714x + x2 = 0 + -1.428571429 Combine like terms: 0 + -1.428571429 = -1.428571429 -10.14285714x + x2 = -1.428571429 The x term is -10.14285714x. Take half its coefficient (-5.07142857). Square it (25.71938774) and add it to both sides. Add '25.71938774' to each side of the equation. -10.14285714x + 25.71938774 + x2 = -1.428571429 + 25.71938774 Reorder the terms: 25.71938774 + -10.14285714x + x2 = -1.428571429 + 25.71938774 Combine like terms: -1.428571429 + 25.71938774 = 24.290816311 25.71938774 + -10.14285714x + x2 = 24.290816311 Factor a perfect square on the left side: (x + -5.07142857)(x + -5.07142857) = 24.290816311 Calculate the square root of the right side: 4.928571427 Break this problem into two subproblems by setting (x + -5.07142857) equal to 4.928571427 and -4.928571427.Subproblem 1
x + -5.07142857 = 4.928571427 Simplifying x + -5.07142857 = 4.928571427 Reorder the terms: -5.07142857 + x = 4.928571427 Solving -5.07142857 + x = 4.928571427 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.07142857' to each side of the equation. -5.07142857 + 5.07142857 + x = 4.928571427 + 5.07142857 Combine like terms: -5.07142857 + 5.07142857 = 0.00000000 0.00000000 + x = 4.928571427 + 5.07142857 x = 4.928571427 + 5.07142857 Combine like terms: 4.928571427 + 5.07142857 = 9.999999997 x = 9.999999997 Simplifying x = 9.999999997Subproblem 2
x + -5.07142857 = -4.928571427 Simplifying x + -5.07142857 = -4.928571427 Reorder the terms: -5.07142857 + x = -4.928571427 Solving -5.07142857 + x = -4.928571427 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.07142857' to each side of the equation. -5.07142857 + 5.07142857 + x = -4.928571427 + 5.07142857 Combine like terms: -5.07142857 + 5.07142857 = 0.00000000 0.00000000 + x = -4.928571427 + 5.07142857 x = -4.928571427 + 5.07142857 Combine like terms: -4.928571427 + 5.07142857 = 0.142857143 x = 0.142857143 Simplifying x = 0.142857143Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.999999997, 0.142857143}
| (3x-10).50=90 | | 5x+5=115-6x | | 5+10x=32+x | | 6x-3=15x-111 | | x^2+3=3-x | | 2x+32=12x-68 | | 9x-27=5x+1 | | 3p^2+18p-11=0 | | 3p^2+18-11=0 | | 3x+38=6x+14 | | 5x=-4y+4 | | 18-x^2=14 | | x^2+18=4 | | x^2+18-4=0 | | -9.78(27x-65)=78.24(6x+34) | | 8x+49=42 | | 4m+3p+m-10p= | | x^2-17x+97=0 | | 2y-3=8 | | -115-10x=7x+21 | | 2(w-3)+5=3 | | 5x+13=-13-8x | | -1+x=-3 | | 135-6x=3x+18 | | 1+x=-3 | | x^2+18x-63=0 | | 64s^2+144s+81=0 | | 3x+18=72 | | -9-4x=11-8x | | 4x^2+12x-80=0 | | 0.8k-5=-7+0.4k | | 4x^2+12x-18=0 |