If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2p^2-7p-30=0
a = 2; b = -7; c = -30;
Δ = b2-4ac
Δ = -72-4·2·(-30)
Δ = 289
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$p_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$p_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{289}=17$$p_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-17}{2*2}=\frac{-10}{4} =-2+1/2 $$p_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+17}{2*2}=\frac{24}{4} =6 $
| 9+4x=4(−x+9)−59 | | 136(30+c)=3 | | d·(-4)=32 | | -113=7a+8(a-1) | | -8k-4=36 | | (c)-(-3)=15 | | r/5+7=10 | | (-7)+b=-11 | | 3=1/5(-5)+b | | x-2(2x+2)=30 | | -320=8(-8+4x) | | 3(3x−7)=20 | | 7•7=1+k | | h–4=–8 | | 3=1/5(-5)b | | 2-9y+2y=37 | | 3(2a+6)= | | (53-x)+(98+x)=180 | | -2k+20=5 | | -9/4=x/108 | | -9(k-17)=-55 | | 5(-5x-1)=120 | | .25w+10=12 | | X^2+2x+5=45 | | 37.81=C+0.50x | | 1+3y=170 | | -21.6=-2.4+y/6 | | 19/7=b/7 | | 5h+5=8h+2 | | 5n+12-9n=-1688 | | 4m-3m=5/2-1/2 | | 5(2-5)-4y=-10 |