7x^2+21=52x

Simple and best practice solution for 7x^2+21=52x 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+21=52x equation:


Simplifying
7x2 + 21 = 52x

Reorder the terms:
21 + 7x2 = 52x

Solving
21 + 7x2 = 52x

Solving for variable 'x'.

Reorder the terms:
21 + -52x + 7x2 = 52x + -52x

Combine like terms: 52x + -52x = 0
21 + -52x + 7x2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

x = {0.4285714286, 7}

See similar equations:

| 21g-8-25g+6= | | 2(b+8)-9=-11 | | -2+14z=-8+9z | | 9g=9+16 | | 5(x+5)/3=2x-3 | | 3y^3+16y^2-12y=0 | | 10x^3+x^2-640x=0 | | -r(4r-8)=-36 | | -5y+20+7x=0 | | 2/5(r-2)=3/20(r-4) | | 4(48-1.75)+7y-12=180 | | -3/2(s-2)=-72 | | -8x-7=2x+23 | | 8x^2+36x+16= | | -3(x-3)-3x=5-6(x+5) | | 7x^2-18=-39x | | 7s-8=2+2s | | 23=7x-26 | | 1/2a+22/3=-1/4 | | X^5-9=aforx | | 8(q+7)=-20 | | x^3-3x-3=0 | | =7x-2 | | x-1/2=10 | | 9t-11=-15+7t | | 3/10+10x=1 | | k+10+3x=90 | | 3/10+x=10 | | (8-b)(3)+6b+12-10b= | | -3.6=-9.2p+2.2(p-3) | | (4X-9X-2)-(8X-13)= | | 3[29-(9+6)]-4*7= |

Equations solver categories