7x^2+46x=21

Simple and best practice solution for 7x^2+46x=21 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 7x^2+46x=21 equation:


Simplifying
7x2 + 46x = 21

Reorder the terms:
46x + 7x2 = 21

Solving
46x + 7x2 = 21

Solving for variable 'x'.

Reorder the terms:
-21 + 46x + 7x2 = 21 + -21

Combine like terms: 21 + -21 = 0
-21 + 46x + 7x2 = 0

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

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(3 + -7x)' equal to zero and attempt to solve: Simplifying 3 + -7x = 0 Solving 3 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7x = 0 + -3 -7x = 0 + -3 Combine like terms: 0 + -3 = -3 -7x = -3 Divide each side by '-7'. x = 0.4285714286 Simplifying x = 0.4285714286

Solution

x = {-7, 0.4285714286}

See similar equations:

| 2(x+2)+3(x+4)=39 | | 0.2x-3=.01x+5 | | (n-9)*6=54 | | 20+8x= | | z+2z^2=15 | | 2x-9/6 | | 1/6(18b-12)=4b-9 | | 2(4c-1)-3=5c+7 | | 2x+79= | | 4-2+(6-8)= | | 7x-3=10x-4 | | 5-2p=-7 | | 5k^2-10k-75=0 | | 5(x-2)-3(x-5)=29 | | 9c+26=5c+6d-5 | | 3(3n^3+2n)-1=0 | | 930=-4x+967 | | x/3-2=29 | | -4(u+5)=-6u-32 | | x/3-2=27 | | -4*10+967= | | y=1-1 | | -4*7+967= | | 9i=x^4 | | -4*4+967= | | 79+2x= | | 12+5v=2v-9-7 | | x+24(x)= | | 6x=-78 | | x+26.25=41.00 | | x/22=35 | | 35+y=4x+8 |

Equations solver categories