3x^2-4x-7=

Simple and best practice solution for 3x^2-4x-7= 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 3x^2-4x-7= equation:


Simplifying
3x2 + -4x + -7 = 0

Reorder the terms:
-7 + -4x + 3x2 = 0

Solving
-7 + -4x + 3x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -3x)' equal to zero and attempt to solve: Simplifying 7 + -3x = 0 Solving 7 + -3x = 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 + -3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3x = 0 + -7 -3x = 0 + -7 Combine like terms: 0 + -7 = -7 -3x = -7 Divide each side by '-3'. x = 2.333333333 Simplifying x = 2.333333333

Solution

x = {-1, 2.333333333}

See similar equations:

| x^2-11x-5=0 | | 22x^2-13x+1= | | -5m^2=-125 | | 8x^2=12x+8 | | 4x^2-44x-20=0 | | 3n^2+24n+2n+16=0 | | 5x^2-3x-8= | | 6x^2-6=12 | | 9x^2-30x+25= | | 4x^2-19x+12= | | 81x^2=9 | | 5y-8-13y=12y+6 | | 4n^2-3n-16n+12=0 | | 3a(-5)=18 | | 8x^2+15x-3= | | 46x=443 | | 8x^2-34x+24=-11 | | (2y+5)(4y+13)=0 | | 3x^2-5x-18x+30=0 | | 7x^2+18x-9= | | z^2+24-11z=0 | | 7x^2+8=15 | | 13+2x=19-x | | 13x^2+6x-7= | | 5m+2=5m+2 | | 12x+8=8x+16 | | 3x^2+32x-11= | | 4x+8y=-4 | | 2x^2-10=-4 | | 3x-18=10-4x | | x^2=13x | | 16x^2-6x-1= |

Equations solver categories