2c^2-9c+7=0

Simple and best practice solution for 2c^2-9c+7=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 2c^2-9c+7=0 equation: 



2c^2-9c+7=0

a = 2; b = -9; c = +7;
Δ = b2-4ac
Δ = -92-4·2·7
Δ = 25
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{25}=5$


$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-5}{2*2}=\frac{4}{4}
=1
$


$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+5}{2*2}=\frac{14}{4}
=3+1/2
$

See similar equations:

| -4=q8-19 | | 14x^2-28x+20=0 | | 12y=3y+36 | | t÷3=7;21 | | 2p^2-9p+7=0 | | t÷3=7;31 | | 8x-5=11-3x | | 3x+4x=4x=36 | | 4x-3-61=90 | | 5x=20;100 | | 3x+20.5=180 | | 4123x+23x-2319x=34x(23x)-32 | | 1/8(5d+4)=3/4 | | 6+10/x=x+9 | | u-7.98=4.16 | | d−-57=63 | | 2x+2x+84+100=360 | | (5x-29)+(4x+1)=180 | | 3(u+5=2u-4+u | | 7-6/a=9 | | 3x+90+60+150=360 | | -5x+-15=30 | | 8+(b)/(-4)=5 | | 10x+3x+5=10 | | 63=16y-9y | | v-9.9=4.51 | | (X-8)(x+8)=180 | | 3x-5x-7=-9 | | 1x-123=123+1x | | x2−26x+119=31 | | x2+16x−3=−19 | | x/6+7x/12=x/15 |

Equations solver categories