If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (7x + 5)(x + 4) = 8 Reorder the terms: (5 + 7x)(x + 4) = 8 Reorder the terms: (5 + 7x)(4 + x) = 8 Multiply (5 + 7x) * (4 + x) (5(4 + x) + 7x * (4 + x)) = 8 ((4 * 5 + x * 5) + 7x * (4 + x)) = 8 ((20 + 5x) + 7x * (4 + x)) = 8 (20 + 5x + (4 * 7x + x * 7x)) = 8 (20 + 5x + (28x + 7x2)) = 8 Combine like terms: 5x + 28x = 33x (20 + 33x + 7x2) = 8 Solving 20 + 33x + 7x2 = 8 Solving for variable 'x'. Reorder the terms: 20 + -8 + 33x + 7x2 = 8 + -8 Combine like terms: 20 + -8 = 12 12 + 33x + 7x2 = 8 + -8 Combine like terms: 8 + -8 = 0 12 + 33x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 1.714285714 + 4.714285714x + x2 = 0 Move the constant term to the right: Add '-1.714285714' to each side of the equation. 1.714285714 + 4.714285714x + -1.714285714 + x2 = 0 + -1.714285714 Reorder the terms: 1.714285714 + -1.714285714 + 4.714285714x + x2 = 0 + -1.714285714 Combine like terms: 1.714285714 + -1.714285714 = 0.000000000 0.000000000 + 4.714285714x + x2 = 0 + -1.714285714 4.714285714x + x2 = 0 + -1.714285714 Combine like terms: 0 + -1.714285714 = -1.714285714 4.714285714x + x2 = -1.714285714 The x term is 4.714285714x. Take half its coefficient (2.357142857). Square it (5.556122448) and add it to both sides. Add '5.556122448' to each side of the equation. 4.714285714x + 5.556122448 + x2 = -1.714285714 + 5.556122448 Reorder the terms: 5.556122448 + 4.714285714x + x2 = -1.714285714 + 5.556122448 Combine like terms: -1.714285714 + 5.556122448 = 3.841836734 5.556122448 + 4.714285714x + x2 = 3.841836734 Factor a perfect square on the left side: (x + 2.357142857)(x + 2.357142857) = 3.841836734 Calculate the square root of the right side: 1.96006039 Break this problem into two subproblems by setting (x + 2.357142857) equal to 1.96006039 and -1.96006039.Subproblem 1
x + 2.357142857 = 1.96006039 Simplifying x + 2.357142857 = 1.96006039 Reorder the terms: 2.357142857 + x = 1.96006039 Solving 2.357142857 + x = 1.96006039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.357142857' to each side of the equation. 2.357142857 + -2.357142857 + x = 1.96006039 + -2.357142857 Combine like terms: 2.357142857 + -2.357142857 = 0.000000000 0.000000000 + x = 1.96006039 + -2.357142857 x = 1.96006039 + -2.357142857 Combine like terms: 1.96006039 + -2.357142857 = -0.397082467 x = -0.397082467 Simplifying x = -0.397082467Subproblem 2
x + 2.357142857 = -1.96006039 Simplifying x + 2.357142857 = -1.96006039 Reorder the terms: 2.357142857 + x = -1.96006039 Solving 2.357142857 + x = -1.96006039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.357142857' to each side of the equation. 2.357142857 + -2.357142857 + x = -1.96006039 + -2.357142857 Combine like terms: 2.357142857 + -2.357142857 = 0.000000000 0.000000000 + x = -1.96006039 + -2.357142857 x = -1.96006039 + -2.357142857 Combine like terms: -1.96006039 + -2.357142857 = -4.317203247 x = -4.317203247 Simplifying x = -4.317203247Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.397082467, -4.317203247}
| 4x^2-5y=9x-12 | | 22=2(3x-10) | | 5x(x+2)=3 | | Y=3ln(x^2+1) | | y=4x-100 | | 6y-54=4y-20 | | (x+3)-40=0 | | 4x/6=4 | | (5x-8)(3x+9)=0 | | 8+-2m= | | 1a+0.8=-0.8+3.86 | | 5(90x-7)=x-126 | | -257+j=32-88 | | 7g+70= | | 5(6-4)=8(h+32) | | 8(x^2)-2=0 | | 7-3n=13 | | .25x+.15=100+.19 | | 3k-5=49 | | 33+3w= | | (r^3+3r^2+12r+10)=0 | | v-45=67 | | 5x-(2x+9)=10-2(2x-1) | | .25+.15=100+.19 | | 9=-7y+3x | | (4x^2+9)(2x-3)(2x-3)=0 | | 4x+5(3x+5)=177 | | 1200-25x=500 | | (3d-24)-5=(9d+18)+1 | | -.5(n^2+4)=0 | | -24+k=0 | | 3x-(4v-u)=3(4x-6u) |