If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (4x2 + 7x + -15) + -1(2x2 + 2x + -4) = 0 Reorder the terms: (-15 + 7x + 4x2) + -1(2x2 + 2x + -4) = 0 Remove parenthesis around (-15 + 7x + 4x2) -15 + 7x + 4x2 + -1(2x2 + 2x + -4) = 0 Reorder the terms: -15 + 7x + 4x2 + -1(-4 + 2x + 2x2) = 0 -15 + 7x + 4x2 + (-4 * -1 + 2x * -1 + 2x2 * -1) = 0 -15 + 7x + 4x2 + (4 + -2x + -2x2) = 0 Reorder the terms: -15 + 4 + 7x + -2x + 4x2 + -2x2 = 0 Combine like terms: -15 + 4 = -11 -11 + 7x + -2x + 4x2 + -2x2 = 0 Combine like terms: 7x + -2x = 5x -11 + 5x + 4x2 + -2x2 = 0 Combine like terms: 4x2 + -2x2 = 2x2 -11 + 5x + 2x2 = 0 Solving -11 + 5x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -5.5 + 2.5x + x2 = 0 Move the constant term to the right: Add '5.5' to each side of the equation. -5.5 + 2.5x + 5.5 + x2 = 0 + 5.5 Reorder the terms: -5.5 + 5.5 + 2.5x + x2 = 0 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + 2.5x + x2 = 0 + 5.5 2.5x + x2 = 0 + 5.5 Combine like terms: 0 + 5.5 = 5.5 2.5x + x2 = 5.5 The x term is 2.5x. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5x + 1.5625 + x2 = 5.5 + 1.5625 Reorder the terms: 1.5625 + 2.5x + x2 = 5.5 + 1.5625 Combine like terms: 5.5 + 1.5625 = 7.0625 1.5625 + 2.5x + x2 = 7.0625 Factor a perfect square on the left side: (x + 1.25)(x + 1.25) = 7.0625 Calculate the square root of the right side: 2.657536453 Break this problem into two subproblems by setting (x + 1.25) equal to 2.657536453 and -2.657536453.Subproblem 1
x + 1.25 = 2.657536453 Simplifying x + 1.25 = 2.657536453 Reorder the terms: 1.25 + x = 2.657536453 Solving 1.25 + x = 2.657536453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 2.657536453 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 2.657536453 + -1.25 x = 2.657536453 + -1.25 Combine like terms: 2.657536453 + -1.25 = 1.407536453 x = 1.407536453 Simplifying x = 1.407536453Subproblem 2
x + 1.25 = -2.657536453 Simplifying x + 1.25 = -2.657536453 Reorder the terms: 1.25 + x = -2.657536453 Solving 1.25 + x = -2.657536453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -2.657536453 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -2.657536453 + -1.25 x = -2.657536453 + -1.25 Combine like terms: -2.657536453 + -1.25 = -3.907536453 x = -3.907536453 Simplifying x = -3.907536453Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.407536453, -3.907536453}
| 45=-9y | | 16*(m-7)=144 | | 4(a-6)= | | 180-x+x=180 | | 10+6x=9.7 | | 13x-24=3x+6 | | 23n+4=-26 | | 45=-9 | | -4(8s+2)= | | -4+3=5x-13-x | | 12(9a)= | | 7x-43=-134 | | 20=-5x+5 | | 4-5(2v-4)=v+2 | | 2(4-b)+3b=11 | | X^2-10x=-11 | | 18-4(g+5)=12-2g | | 9(z+9)= | | 7x+43=134 | | X^2-10=-11 | | 3(b-3)-2(b-3)=2b-3 | | 14y=28 | | 1.6c+50=100 | | (4x-5)(x+3)=0 | | 3d+3=12+-6d | | 2n+1.3=2 | | x+1=2x+7 | | 3x-20-4=3x+6 | | x-3x^2+2=0 | | 5x-7(9x-2)=-193 | | 6x+4y=22 | | 3x^2+2x+-1=0 |