-16x^2+135x+7=0

Simple and best practice solution for -16x^2+135x+7=0 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 -16x^2+135x+7=0 equation:


Simplifying
-16x2 + 135x + 7 = 0

Reorder the terms:
7 + 135x + -16x2 = 0

Solving
7 + 135x + -16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-0.4375 + -8.4375x + x2 = 0

Move the constant term to the right:

Add '0.4375' to each side of the equation.
-0.4375 + -8.4375x + 0.4375 + x2 = 0 + 0.4375

Reorder the terms:
-0.4375 + 0.4375 + -8.4375x + x2 = 0 + 0.4375

Combine like terms: -0.4375 + 0.4375 = 0.0000
0.0000 + -8.4375x + x2 = 0 + 0.4375
-8.4375x + x2 = 0 + 0.4375

Combine like terms: 0 + 0.4375 = 0.4375
-8.4375x + x2 = 0.4375

The x term is -8.4375x.  Take half its coefficient (-4.21875).
Square it (17.79785156) and add it to both sides.

Add '17.79785156' to each side of the equation.
-8.4375x + 17.79785156 + x2 = 0.4375 + 17.79785156

Reorder the terms:
17.79785156 + -8.4375x + x2 = 0.4375 + 17.79785156

Combine like terms: 0.4375 + 17.79785156 = 18.23535156
17.79785156 + -8.4375x + x2 = 18.23535156

Factor a perfect square on the left side:
(x + -4.21875)(x + -4.21875) = 18.23535156

Calculate the square root of the right side: 4.270287058

Break this problem into two subproblems by setting 
(x + -4.21875) equal to 4.270287058 and -4.270287058.

Subproblem 1

x + -4.21875 = 4.270287058 Simplifying x + -4.21875 = 4.270287058 Reorder the terms: -4.21875 + x = 4.270287058 Solving -4.21875 + x = 4.270287058 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.21875' to each side of the equation. -4.21875 + 4.21875 + x = 4.270287058 + 4.21875 Combine like terms: -4.21875 + 4.21875 = 0.00000 0.00000 + x = 4.270287058 + 4.21875 x = 4.270287058 + 4.21875 Combine like terms: 4.270287058 + 4.21875 = 8.489037058 x = 8.489037058 Simplifying x = 8.489037058

Subproblem 2

x + -4.21875 = -4.270287058 Simplifying x + -4.21875 = -4.270287058 Reorder the terms: -4.21875 + x = -4.270287058 Solving -4.21875 + x = -4.270287058 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.21875' to each side of the equation. -4.21875 + 4.21875 + x = -4.270287058 + 4.21875 Combine like terms: -4.21875 + 4.21875 = 0.00000 0.00000 + x = -4.270287058 + 4.21875 x = -4.270287058 + 4.21875 Combine like terms: -4.270287058 + 4.21875 = -0.051537058 x = -0.051537058 Simplifying x = -0.051537058

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.489037058, -0.051537058}

See similar equations:

| x=50-.04x | | 8-(2+3m)=-5(m-4) | | -4x^2+3x=-5 | | -3(3w-v)+2(6v-6w)= | | 8b+35=-29 | | -3(X+2)=16-X | | -8(-5x+3y-6)= | | 7-3=x-4(2+x) | | (1/3)*(6x+24)-20=(5/6)*(4x-2) | | -4X+10=-5X+18 | | (y-1)(y-4)=0 | | 8-(2+3m)=5(m-4) | | x=22-5 | | 4m+10=9m-5 | | 5y-2(y-9)=6-y | | ln(x)+ln(x+5)=2 | | 15x+21(x-2)=246 | | 60X+153=9X+51 | | 5(6v-4)=-10(11-12v) | | y=-15x | | 5x+30(x-4)=265 | | -6*-6+5x-3= | | -3(p+2)+2p-7=4(p+3) | | (1)/(4)(x-8)=7 | | 11x^2+8-4x-5x^2-6x= | | 7+3w=-2 | | 3c^2-14c+8=0 | | 51+13= | | 5x+y-7=0 | | y-116=239 | | 3a+3(1-a)a=17 | | -7-6y=12 |

Equations solver categories