9x^2+15=24

Simple and best practice solution for 9x^2+15=24 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 9x^2+15=24 equation:



9x^2+15=24
We move all terms to the left:
9x^2+15-(24)=0
We add all the numbers together, and all the variables
9x^2-9=0
a = 9; b = 0; c = -9;
Δ = b2-4ac
Δ = 02-4·9·(-9)
Δ = 324
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{324}=18$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-18}{2*9}=\frac{-18}{18} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+18}{2*9}=\frac{18}{18} =1 $

See similar equations:

| -18=2a+4 | | 1=3q-3 | | n3=64 | | 22a=4 | | -15=-7p | | -16.1=x/6+3.1 | | 11=1/3a+2= | | 52=(n-9) | | 11-2j=5 | | 28+3(2)=x | | X^2+12x+40=4-3x | | 4q^2-3q^2+3q-10=0 | | 1=x/3-4 | | y/8+5=15 | | 111=-6-4x-9 | | 2y^2+27y–14=0 | | 6(x+8)=5x-20 | | -23=7b-9 | | (4x-7)+(8x-34)=55 | | -15=3+3w | | 55=(4x-7) | | 25=w/5+9 | | 36=3r | | 8x-6=4x-16 | | 10=2+2v | | -3+n/15=1 | | 7x³-9x³+2x³=0 | | x^2+7x-75=0 | | -6=-4+s | | 5x=4x+33 | | 6-(4-7d)=3d+2 | | 3√x-2+7=19 |

Equations solver categories