If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 20x + -18 = 0 Reorder the terms: -18 + 20x + 7x2 = 0 Solving -18 + 20x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -2.571428571 + 2.857142857x + x2 = 0 Move the constant term to the right: Add '2.571428571' to each side of the equation. -2.571428571 + 2.857142857x + 2.571428571 + x2 = 0 + 2.571428571 Reorder the terms: -2.571428571 + 2.571428571 + 2.857142857x + x2 = 0 + 2.571428571 Combine like terms: -2.571428571 + 2.571428571 = 0.000000000 0.000000000 + 2.857142857x + x2 = 0 + 2.571428571 2.857142857x + x2 = 0 + 2.571428571 Combine like terms: 0 + 2.571428571 = 2.571428571 2.857142857x + x2 = 2.571428571 The x term is 2.857142857x. Take half its coefficient (1.428571429). Square it (2.040816328) and add it to both sides. Add '2.040816328' to each side of the equation. 2.857142857x + 2.040816328 + x2 = 2.571428571 + 2.040816328 Reorder the terms: 2.040816328 + 2.857142857x + x2 = 2.571428571 + 2.040816328 Combine like terms: 2.571428571 + 2.040816328 = 4.612244899 2.040816328 + 2.857142857x + x2 = 4.612244899 Factor a perfect square on the left side: (x + 1.428571429)(x + 1.428571429) = 4.612244899 Calculate the square root of the right side: 2.147613769 Break this problem into two subproblems by setting (x + 1.428571429) equal to 2.147613769 and -2.147613769.Subproblem 1
x + 1.428571429 = 2.147613769 Simplifying x + 1.428571429 = 2.147613769 Reorder the terms: 1.428571429 + x = 2.147613769 Solving 1.428571429 + x = 2.147613769 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.428571429' to each side of the equation. 1.428571429 + -1.428571429 + x = 2.147613769 + -1.428571429 Combine like terms: 1.428571429 + -1.428571429 = 0.000000000 0.000000000 + x = 2.147613769 + -1.428571429 x = 2.147613769 + -1.428571429 Combine like terms: 2.147613769 + -1.428571429 = 0.71904234 x = 0.71904234 Simplifying x = 0.71904234Subproblem 2
x + 1.428571429 = -2.147613769 Simplifying x + 1.428571429 = -2.147613769 Reorder the terms: 1.428571429 + x = -2.147613769 Solving 1.428571429 + x = -2.147613769 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.428571429' to each side of the equation. 1.428571429 + -1.428571429 + x = -2.147613769 + -1.428571429 Combine like terms: 1.428571429 + -1.428571429 = 0.000000000 0.000000000 + x = -2.147613769 + -1.428571429 x = -2.147613769 + -1.428571429 Combine like terms: -2.147613769 + -1.428571429 = -3.576185198 x = -3.576185198 Simplifying x = -3.576185198Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.71904234, -3.576185198}
| 2x+6(-2.5x+5)=-4 | | (-2)x(-25)= | | x+x*x=16 | | -46=3x+7y | | x/9-5/6=4x/9 | | (X-17.7)+19.6=28.8 | | 3-2a=15 | | 7(10x+8)=-364 | | 4y+4-3y=2y-6 | | f(x)=4x^2+6x+3 | | r/3-3/8/r=-3/4 | | 6y+2(3x+5)+2y+3= | | 5(x-3)=4x-9+3x | | 5a+b=2 | | (5.6*10^-6)/(7*10^3)= | | -7x-4(5x-2)=197 | | 3x-3(x+1)=e | | 5.6*10^-6/7*10^3= | | 14x-17=6x-10 | | 5.6X10^-6/7X10^3= | | h^2+9h+8=0 | | sin^2xcos^2x=1-cos4x/8 | | 5(a-2)=3(a+1) | | 4y-25=35 | | 2mi=ft | | -2x+7y+-7y=0+-7y | | 4x-16=10x+8 | | 25-(-p+18)=45 | | 120=5x+5(-3x+10) | | 360-59-90-19x= | | 1 = z4– 3 | | h^2-14h+24=0 |