7p^2-22=-8p

Simple and best practice solution for 7p^2-22=-8p equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 7p^2-22=-8p equation:


Simplifying
7p2 + -22 = -8p

Reorder the terms:
-22 + 7p2 = -8p

Solving
-22 + 7p2 = -8p

Solving for variable 'p'.

Reorder the terms:
-22 + 8p + 7p2 = -8p + 8p

Combine like terms: -8p + 8p = 0
-22 + 8p + 7p2 = 0

Begin completing the square.  Divide all terms by
7 the coefficient of the squared term: 

Divide each side by '7'.
-3.142857143 + 1.142857143p + p2 = 0

Move the constant term to the right:

Add '3.142857143' to each side of the equation.
-3.142857143 + 1.142857143p + 3.142857143 + p2 = 0 + 3.142857143

Reorder the terms:
-3.142857143 + 3.142857143 + 1.142857143p + p2 = 0 + 3.142857143

Combine like terms: -3.142857143 + 3.142857143 = 0.000000000
0.000000000 + 1.142857143p + p2 = 0 + 3.142857143
1.142857143p + p2 = 0 + 3.142857143

Combine like terms: 0 + 3.142857143 = 3.142857143
1.142857143p + p2 = 3.142857143

The p term is 1.142857143p.  Take half its coefficient (0.5714285715).
Square it (0.3265306123) and add it to both sides.

Add '0.3265306123' to each side of the equation.
1.142857143p + 0.3265306123 + p2 = 3.142857143 + 0.3265306123

Reorder the terms:
0.3265306123 + 1.142857143p + p2 = 3.142857143 + 0.3265306123

Combine like terms: 3.142857143 + 0.3265306123 = 3.4693877553
0.3265306123 + 1.142857143p + p2 = 3.4693877553

Factor a perfect square on the left side:
(p + 0.5714285715)(p + 0.5714285715) = 3.4693877553

Calculate the square root of the right side: 1.862629259

Break this problem into two subproblems by setting 
(p + 0.5714285715) equal to 1.862629259 and -1.862629259.

Subproblem 1

p + 0.5714285715 = 1.862629259 Simplifying p + 0.5714285715 = 1.862629259 Reorder the terms: 0.5714285715 + p = 1.862629259 Solving 0.5714285715 + p = 1.862629259 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5714285715' to each side of the equation. 0.5714285715 + -0.5714285715 + p = 1.862629259 + -0.5714285715 Combine like terms: 0.5714285715 + -0.5714285715 = 0.0000000000 0.0000000000 + p = 1.862629259 + -0.5714285715 p = 1.862629259 + -0.5714285715 Combine like terms: 1.862629259 + -0.5714285715 = 1.2912006875 p = 1.2912006875 Simplifying p = 1.2912006875

Subproblem 2

p + 0.5714285715 = -1.862629259 Simplifying p + 0.5714285715 = -1.862629259 Reorder the terms: 0.5714285715 + p = -1.862629259 Solving 0.5714285715 + p = -1.862629259 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5714285715' to each side of the equation. 0.5714285715 + -0.5714285715 + p = -1.862629259 + -0.5714285715 Combine like terms: 0.5714285715 + -0.5714285715 = 0.0000000000 0.0000000000 + p = -1.862629259 + -0.5714285715 p = -1.862629259 + -0.5714285715 Combine like terms: -1.862629259 + -0.5714285715 = -2.4340578305 p = -2.4340578305 Simplifying p = -2.4340578305

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.2912006875, -2.4340578305}

See similar equations:

| 4x^2-y^2-4x+1=0 | | 5(x-12)+x=180 | | sinx=0.785 | | 3h+1+h+13=2(3h-4) | | 2x+-8=3+3x | | 9=4x-3x+4 | | Log1/3(x) | | Y=x^4lnx-1/3x^3 | | 3f+6+9=13+5g | | 20+2x=40 | | (-2n-3)(-6)=-78 | | -s/3-6 | | -3+9=-9 | | 10x^3-19x-2=0 | | 4a+-8=3a+4 | | 0.85x+0.05(8-x)=0.10(132) | | 309+x=321 | | -2c=-c+17 | | 12(x-3)=84 | | (g+8)(5g+5)=0 | | 19+4h=15h | | 10x-3=347 | | log(x)=5.4 | | (7x-95)+(3x-38)=45 | | 3x=9x+54 | | -7+6x=-43 | | (15)=-x+7 | | 8x+5=-8(-2x+6)-7 | | X/0.06=300 | | 2.8x+21=2.2x+18 | | (y+12)(2y-9)=0 | | U^2+3U-91=0 |

Equations solver categories