If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 7x + -42 = 0 Reorder the terms: -42 + 7x + 2x2 = 0 Solving -42 + 7x + 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'. -21 + 3.5x + x2 = 0 Move the constant term to the right: Add '21' to each side of the equation. -21 + 3.5x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + 3.5x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 3.5x + x2 = 0 + 21 3.5x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 3.5x + x2 = 21 The x term is 3.5x. Take half its coefficient (1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. 3.5x + 3.0625 + x2 = 21 + 3.0625 Reorder the terms: 3.0625 + 3.5x + x2 = 21 + 3.0625 Combine like terms: 21 + 3.0625 = 24.0625 3.0625 + 3.5x + x2 = 24.0625 Factor a perfect square on the left side: (x + 1.75)(x + 1.75) = 24.0625 Calculate the square root of the right side: 4.905354218 Break this problem into two subproblems by setting (x + 1.75) equal to 4.905354218 and -4.905354218.Subproblem 1
x + 1.75 = 4.905354218 Simplifying x + 1.75 = 4.905354218 Reorder the terms: 1.75 + x = 4.905354218 Solving 1.75 + x = 4.905354218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = 4.905354218 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = 4.905354218 + -1.75 x = 4.905354218 + -1.75 Combine like terms: 4.905354218 + -1.75 = 3.155354218 x = 3.155354218 Simplifying x = 3.155354218Subproblem 2
x + 1.75 = -4.905354218 Simplifying x + 1.75 = -4.905354218 Reorder the terms: 1.75 + x = -4.905354218 Solving 1.75 + x = -4.905354218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = -4.905354218 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = -4.905354218 + -1.75 x = -4.905354218 + -1.75 Combine like terms: -4.905354218 + -1.75 = -6.655354218 x = -6.655354218 Simplifying x = -6.655354218Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.155354218, -6.655354218}
| 38=10x-2 | | x+x+32.6+x+24.8=198 | | 18a^2+12a+2=0 | | x+x-1+x+2=31 | | -2/9x=4/3 | | 4w^2-1w-60=0 | | 6n+4mn+3+2m= | | 5(y+5)= | | x+x+25+2x-32=477 | | -12=x/-3 | | -5r-2.9+3.8r-2.9r+1= | | y/-5=7 | | -7(3x-7)+7=-21x+56 | | -8*9= | | .9x+2=x+1.7 | | P=3a+3b | | -2x-5/3=7/3 | | -2a+6+8a=9a-6a | | 0.3x-0.6x-17=1 | | -4(t-5)+6t=5t-7 | | 1=0.3x-0.9x-29 | | 21x^5-14x^4-35x^2=0 | | 16*-2= | | 10-5x-6-9x=6 | | 18x-7=1+16x | | 11=5x-5 | | -3x=1/2 | | 4b/5=8.5 | | x-45=-22 | | 8X+22-2Y=172 | | 27+(-10)= | | 3b-3-11b-6= |