If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 70 = n2 + 7n Reorder the terms: 70 = 7n + n2 Solving 70 = 7n + n2 Solving for variable 'n'. Reorder the terms: 70 + -7n + -1n2 = 7n + -7n + n2 + -1n2 Combine like terms: 7n + -7n = 0 70 + -7n + -1n2 = 0 + n2 + -1n2 70 + -7n + -1n2 = n2 + -1n2 Combine like terms: n2 + -1n2 = 0 70 + -7n + -1n2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -70 + 7n + n2 = 0 Move the constant term to the right: Add '70' to each side of the equation. -70 + 7n + 70 + n2 = 0 + 70 Reorder the terms: -70 + 70 + 7n + n2 = 0 + 70 Combine like terms: -70 + 70 = 0 0 + 7n + n2 = 0 + 70 7n + n2 = 0 + 70 Combine like terms: 0 + 70 = 70 7n + n2 = 70 The n term is 7n. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7n + 12.25 + n2 = 70 + 12.25 Reorder the terms: 12.25 + 7n + n2 = 70 + 12.25 Combine like terms: 70 + 12.25 = 82.25 12.25 + 7n + n2 = 82.25 Factor a perfect square on the left side: (n + 3.5)(n + 3.5) = 82.25 Calculate the square root of the right side: 9.069178574 Break this problem into two subproblems by setting (n + 3.5) equal to 9.069178574 and -9.069178574.Subproblem 1
n + 3.5 = 9.069178574 Simplifying n + 3.5 = 9.069178574 Reorder the terms: 3.5 + n = 9.069178574 Solving 3.5 + n = 9.069178574 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + n = 9.069178574 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + n = 9.069178574 + -3.5 n = 9.069178574 + -3.5 Combine like terms: 9.069178574 + -3.5 = 5.569178574 n = 5.569178574 Simplifying n = 5.569178574Subproblem 2
n + 3.5 = -9.069178574 Simplifying n + 3.5 = -9.069178574 Reorder the terms: 3.5 + n = -9.069178574 Solving 3.5 + n = -9.069178574 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + n = -9.069178574 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + n = -9.069178574 + -3.5 n = -9.069178574 + -3.5 Combine like terms: -9.069178574 + -3.5 = -12.569178574 n = -12.569178574 Simplifying n = -12.569178574Solution
The solution to the problem is based on the solutions from the subproblems. n = {5.569178574, -12.569178574}
| X+2.1=4.6 | | 10-5d-7d=-10d-6 | | -12=-4u+7(u-3) | | 3.5-8= | | 4(X^2-3)+10=22 | | 4X=1X+15 | | 3x+8+6x=10x-x+12-4x | | 8(c-5)+2c=10 | | -9f=-7-10f | | .06(x+8)=.03(2x+7)+.27 | | 13x^2-22=0 | | 4y=3y-22 | | 0.4y=38 | | -6-12=42 | | 3/2x=-8 | | 4x+3=7x-42 | | 3.2x=-8 | | cosx+(cos^2)x=0 | | 4r+7=5r | | 2x+7+3x=12x+9y | | (6(7.5)-7)*2= | | 4x^2-40x-525=0 | | 6.1-2.1(t+2)=3(t+1.5) | | x-y=180 | | (6(7.5)-f)*2= | | 2x+7+3x=12x | | 19+m+17+m=4 | | y^8+17y^4+70=0 | | 40=5C | | 14+x=-144 | | 2+2.5(z+2)=4.5(z)-1 | | 1=x+6-14 |