If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x(x-15)=-3
We move all terms to the left:
2x(x-15)-(-3)=0
We add all the numbers together, and all the variables
2x(x-15)+3=0
We multiply parentheses
2x^2-30x+3=0
a = 2; b = -30; c = +3;
Δ = b2-4ac
Δ = -302-4·2·3
Δ = 876
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{876}=\sqrt{4*219}=\sqrt{4}*\sqrt{219}=2\sqrt{219}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-30)-2\sqrt{219}}{2*2}=\frac{30-2\sqrt{219}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-30)+2\sqrt{219}}{2*2}=\frac{30+2\sqrt{219}}{4} $
| 3x-9=4(x+-3) | | 2+4(x-1)=22;x=6 | | 3y^2-32y+69=0 | | A=21000t+600 | | 2x2+12X=6 | | 8−(4c−5)=11 | | 8−(4c−5)=118−(4c−5)=11. | | 4x-42=2x | | -3x+8+x=5-2x+3 | | R+4/3=r/5 | | -1.4t+3=7.5 | | 2/7=1/3x-1 | | 7/y=14 | | 8x=5x6 | | 3(x+8)=1/2(6x+4) | | 5x^2+16x=-6 | | 3/x+2x-10=20 | | 8n-2n+7=23 | | ((5/3)x)-15=180 | | 2/3(6x+3=4x+2 | | 2x2-5x-3=0 | | -2(r+9)=-21 | | x(x^2)-5x^2-16x=-80 | | 3(2x-14)=3(-13+x) | | 5x^2+16x+6=0 | | 6x+25=-37 | | (x-9)x-38=14 | | 5+22w=11/6 | | 61/6n=9 | | 6x+37=-37 | | 7x+9=20+2 | | 2z-4=z+4 |