If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (2k)(2k) + -28k = -49 Remove parenthesis around (2k) 2k(2k) + -28k = -49 Remove parenthesis around (2k) 2k * 2k + -28k = -49 Reorder the terms for easier multiplication: 2 * 2k * k + -28k = -49 Multiply 2 * 2 4k * k + -28k = -49 Multiply k * k 4k2 + -28k = -49 Reorder the terms: -28k + 4k2 = -49 Solving -28k + 4k2 = -49 Solving for variable 'k'. Reorder the terms: 49 + -28k + 4k2 = -49 + 49 Combine like terms: -49 + 49 = 0 49 + -28k + 4k2 = 0 Factor a trinomial. (7 + -2k)(7 + -2k) = 0Subproblem 1
Set the factor '(7 + -2k)' equal to zero and attempt to solve: Simplifying 7 + -2k = 0 Solving 7 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2k = 0 + -7 -2k = 0 + -7 Combine like terms: 0 + -7 = -7 -2k = -7 Divide each side by '-2'. k = 3.5 Simplifying k = 3.5Subproblem 2
Set the factor '(7 + -2k)' equal to zero and attempt to solve: Simplifying 7 + -2k = 0 Solving 7 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2k = 0 + -7 -2k = 0 + -7 Combine like terms: 0 + -7 = -7 -2k = -7 Divide each side by '-2'. k = 3.5 Simplifying k = 3.5Solution
k = {3.5, 3.5}
| -3+5w=-13 | | 10n^2+10n-4=4n^2 | | 0.25x=137.5 | | 7(5x+1)=35x+7 | | x^4-9x^3+8x^2=0 | | tn=5+(n-1)10 | | 12x+9=5x-26 | | 16(27)/9= | | 35x-3(5+12x)=0 | | 0.04(y-9)+0.20y=0.12y-0.9 | | y=x-6/5 | | 26=8+6x | | 57x-12=-3x+2 | | 11x^2-28x-x^3=0 | | 5*-35-3=y | | 3x+4(2x+12)=180 | | (N-2)*180=1620 | | 20.4=-3.4d | | 9x+8=14x-22 | | 14-5t=14 | | -4x+33y= | | 24v^2+119+61=-v^2+1+4v | | 9x+8=12x+2 | | 38=30+2t | | K/1.5=-4.5 | | -2y-12=8y+8 | | y=3x^2-2x-7 | | 8x^2-12x-x^3=0 | | 16-3(2x+1)=14 | | 4x-25=9x-30 | | x/2=-39 | | -8.47r=5.88 |