-3x^2+4x+15=0

Simple and best practice solution for -3x^2+4x+15=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 -3x^2+4x+15=0 equation:


Simplifying
-3x2 + 4x + 15 = 0

Reorder the terms:
15 + 4x + -3x2 = 0

Solving
15 + 4x + -3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -1x)(5 + 3x) = 0

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 2

Set the factor '(5 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

Solution

x = {3, -1.666666667}

See similar equations:

| 8(x+3)=16 | | 24x=12x-168 | | 3x-5y=-29 | | -50x^2+1500x=10800 | | 264=2(2w+5)+2w | | -4(-6u+7)-3u=3(u-5)-1 | | 5(x-4)=3x-24 | | secx-2tanx=0 | | 3(y-3)-5y=9 | | 4+4w=-20 | | 6-19v+10v^2=0 | | 1.36X^2+27.8x-196=0 | | 1.36X^2+27.8x-196= | | -6+v=-3 | | .6n-2=.2n+3 | | 2x+12=0 | | -13u=-9 | | 6-(4z-1)=5-5z | | 28=-7.2y | | 2x^2-6=4 | | 2e+5=8-2 | | 5y^2-40y-100=0 | | 7y-6=-3+8y | | 3x^2-x+3=0 | | 4ln(x-5)=8 | | (x+1)(x+1)=(x+5)(x+6) | | 3x-2=43 | | x^2-16k^2x=0 | | Y=3(-3)-6 | | -3x(x-8)=33 | | -4(x-2)x= | | 8a^3+14a^2+38= |

Equations solver categories