If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + 42x + 45 = 0 Reorder the terms: 45 + 42x + 7x2 = 0 Solving 45 + 42x + 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'. 6.428571429 + 6x + x2 = 0 Move the constant term to the right: Add '-6.428571429' to each side of the equation. 6.428571429 + 6x + -6.428571429 + x2 = 0 + -6.428571429 Reorder the terms: 6.428571429 + -6.428571429 + 6x + x2 = 0 + -6.428571429 Combine like terms: 6.428571429 + -6.428571429 = 0.000000000 0.000000000 + 6x + x2 = 0 + -6.428571429 6x + x2 = 0 + -6.428571429 Combine like terms: 0 + -6.428571429 = -6.428571429 6x + x2 = -6.428571429 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -6.428571429 + 9 Reorder the terms: 9 + 6x + x2 = -6.428571429 + 9 Combine like terms: -6.428571429 + 9 = 2.571428571 9 + 6x + x2 = 2.571428571 Factor a perfect square on the left side: (x + 3)(x + 3) = 2.571428571 Calculate the square root of the right side: 1.603567451 Break this problem into two subproblems by setting (x + 3) equal to 1.603567451 and -1.603567451.Subproblem 1
x + 3 = 1.603567451 Simplifying x + 3 = 1.603567451 Reorder the terms: 3 + x = 1.603567451 Solving 3 + x = 1.603567451 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 1.603567451 + -3 Combine like terms: 3 + -3 = 0 0 + x = 1.603567451 + -3 x = 1.603567451 + -3 Combine like terms: 1.603567451 + -3 = -1.396432549 x = -1.396432549 Simplifying x = -1.396432549Subproblem 2
x + 3 = -1.603567451 Simplifying x + 3 = -1.603567451 Reorder the terms: 3 + x = -1.603567451 Solving 3 + x = -1.603567451 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -1.603567451 + -3 Combine like terms: 3 + -3 = 0 0 + x = -1.603567451 + -3 x = -1.603567451 + -3 Combine like terms: -1.603567451 + -3 = -4.603567451 x = -4.603567451 Simplifying x = -4.603567451Solution
The solution to the problem is based on the solutions from the subproblems. x = {-1.396432549, -4.603567451}
| 6m^2+m=40 | | 3p+4q-3(7p-2q)= | | 0.6a-6=12 | | (-4e^7x)/(7x-2) | | 7=5x-y | | K-17=-5 | | 2x+8x-(4x+7)= | | -0.4a+3=7 | | 5x+0.4=x-0.1 | | X^2-1/2x-15=0 | | 8x+26=-10x-10 | | -2.5a+5=25 | | 2x+40=-7x-14 | | .04x+0.08(20-x)=1.4 | | 3/9-5x0 | | 3(1.4)=2(1.4)+1.4 | | 78=-9x-3(56+12x) | | 12n-3=57 | | 2(9+x)=-15(4-x) | | X^2-5x+56=0 | | 4(1.4)+6=2(1.4-3) | | 4x-x=-21 | | 15-3n=60 | | 1/5*2/-4 | | 7(1.4)-3.2=4(1.4)+1 | | 2q+930=432 | | 45x^3+135x^2+70x= | | 78=-9x-3(-5612x) | | 2(3-k)+5K+4=27 | | 7x-2=5x-10 | | Q+375=857 | | .25(8x+4)=3 |