21p^2-112p-448=0

Simple and best practice solution for 21p^2-112p-448=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 21p^2-112p-448=0 equation:


Simplifying
21p2 + -112p + -448 = 0

Reorder the terms:
-448 + -112p + 21p2 = 0

Solving
-448 + -112p + 21p2 = 0

Solving for variable 'p'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-64 + -16p + 3p2) = 0

Factor a trinomial.
7((-8 + -3p)(8 + -1p)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-8 + -3p)' equal to zero and attempt to solve: Simplifying -8 + -3p = 0 Solving -8 + -3p = 0 Move all terms containing p to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -3p = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -3p = 0 + 8 -3p = 0 + 8 Combine like terms: 0 + 8 = 8 -3p = 8 Divide each side by '-3'. p = -2.666666667 Simplifying p = -2.666666667

Subproblem 2

Set the factor '(8 + -1p)' equal to zero and attempt to solve: Simplifying 8 + -1p = 0 Solving 8 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1p = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1p = 0 + -8 -1p = 0 + -8 Combine like terms: 0 + -8 = -8 -1p = -8 Divide each side by '-1'. p = 8 Simplifying p = 8

Solution

p = {-2.666666667, 8}

See similar equations:

| -4(8v-7)+6(-4v-1)=22 | | -5x+30=-3x+50 | | x+52+x+119=163 | | 4.3+10m=8.49 | | 2x^2=-8x+10x | | 2m+8+m=-3 | | 3(3-d)-19=17d-5(2+4d) | | 13x+5=14x-7 | | 8=x-square(x-6) | | ab+3b= | | 14-2m=26 | | 6x-3=6(x+9) | | 3q-11=61-3q | | 2y-12+3y=6+5y | | 3x+4=-8-5x | | 3x+8-2x=9+4x-7 | | 2+3.5(z+2)=5.5z-5 | | 8(x+2)+6(x+2)=7x-7 | | 6(z^2+1)=-13z | | x(5x+17)=2x^2-5x+16 | | 1+109x+45x-1=154 | | 9m^2+144=78m | | 4(x+8)=x+5 | | 0.55x+0.3x=x-10.5 | | 4(3x-2y)=(3y-2x) | | (3x-9)(x^2-4x-x+4)+(2x-4)(x^2-4x-x+4)=(4x-12)(x^2-4x-2x+8)+(x-3)(x^2-x-2x+2) | | 12-k-2=6k-11 | | 8x^3-4x^2+7x-1=0 | | 0.4x+3.6=0.3x+1.3 | | (3x-4)+(2x+1)= | | 8(x+2)=7x-7 | | 1.35p=40.5 |

Equations solver categories