If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2+16/49=0
We multiply all the terms by the denominator
4x^2*49+16=0
Wy multiply elements
196x^2+16=0
a = 196; b = 0; c = +16;
Δ = b2-4ac
Δ = 02-4·196·16
Δ = -12544
Delta is less than zero, so there is no solution for the equation
| 0.95^x=0.3 | | 11(2y-7)=21 | | -2+x+21)-3(x-14)=-5x | | 90+4x+5x=360 | | 90+4x+5x=250 | | -5.57=x | | 17-2(6x-5)=4(7x-2 | | 8x/6x-24=8x/2(3x-12) | | x+x+3x+3x=360 | | 16-4y=30 | | 15x+x-15=-65 | | X2-6x+14=10 | | 6(N–1)–54=-14;n=23/3 | | 56-4x=12 | | 81=3r^-3 | | 6+(2•x-4)=12 | | (2x)/(x+1)-5/(2x)=2 | | 5(x-3)-8=0 | | -5(3-x)+4=2x-14 | | 7x+23=2(2x-5) | | F=10m=2A=25 | | F=10,m=2A=25 | | 50-4x=8=10x | | -n-9=-20 | | 7x=1/9 | | 5˄3x+1=6˄2x+1 | | 2868+1,1886x=x | | 12x3-42+20=14 | | 9/4x+1=11/12 | | -⅖x+3=⅕x+11 | | 9y+21=3y-27 | | x=6,x=-9 |