If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2+7=55
We move all terms to the left:
4x^2+7-(55)=0
We add all the numbers together, and all the variables
4x^2-48=0
a = 4; b = 0; c = -48;
Δ = b2-4ac
Δ = 02-4·4·(-48)
Δ = 768
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{768}=\sqrt{256*3}=\sqrt{256}*\sqrt{3}=16\sqrt{3}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-16\sqrt{3}}{2*4}=\frac{0-16\sqrt{3}}{8} =-\frac{16\sqrt{3}}{8} =-2\sqrt{3} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+16\sqrt{3}}{2*4}=\frac{0+16\sqrt{3}}{8} =\frac{16\sqrt{3}}{8} =2\sqrt{3} $
| 5.5-3b=2b-4.5 | | x-4/(5-1)=2 | | 2x+7=3(x+5) | | 12x2=24 | | x2–6x+9=4 | | x^2+45=30 | | y+(y*3)=84000 | | x-2/3=18 | | 8d+12=44 | | -3(2x+1)=3x=6x+3 | | -4x+6(-7x+16)=-180 | | 35a+110=285 | | 56=20s-44 | | 50=20s-44 | | 0.6+1.9x=5 | | 3(p+8)÷1=6(p+6)÷3 | | 180=4x+5(4x-12) | | -4x^2-32x-84=0 | | 4x-6=1;1 | | -5x+3(7x-9)=-139 | | y+27/5=4 | | 6x-2=3×+8 | | {2x^2-20x+16=0} | | 2^(x+4)+2^x=136 | | 8(p+7)=-24 | | 5(k+4)=55 | | 4x-3(-3x+5)=89 | | -9p+10=46 | | .5(x^2+5x+136)^(2/3)=50 | | 4x+20-x=180 | | −9p+10=46 | | -4K-10=-3k-4-1 |