If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2+12x-135=0
a = 4; b = 12; c = -135;
Δ = b2-4ac
Δ = 122-4·4·(-135)
Δ = 2304
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{2304}=48$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(12)-48}{2*4}=\frac{-60}{8} =-7+1/2 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(12)+48}{2*4}=\frac{36}{8} =4+1/2 $
| 10^2+10^2=c^2 | | 3x+2=5x-4=180 | | -2(x+2)+3=8(x+4)+1 | | 2=3/4*5+b | | (14x)=(17x-18) | | 2a^2=82 | | 16^-x+4=9^-4x | | x=6+45 | | 6x-5+4x=90 | | 3,172+x=3,724 | | 10=m-@32 | | m=2m=4=94 | | 3(0.5x-4)=1/2/x-1.2 | | a-3/6=a/7 | | U/3+4/15=u/5 | | 6x+8=38- | | 12x—4=8x+24 | | 2x+2x+18=302 | | 3x-54=24 | | 24x=1x+23 | | 1150000=(x)(.06)+50 | | a=3.14(69/10)2 | | x+4-2+8=14 | | 9=4+5u | | 2.4y=13 | | -19f-20=-20f | | 2b-20=5b+7 | | 14=11w/8 | | 4-3/2(5/4a+1/6)=51/16-3/2a | | -4u=-3u-1 | | a+5=4a+7 | | -9-10z+4=-6z-9 |