If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-4.9x^2+10x+828=0
a = -4.9; b = 10; c = +828;
Δ = b2-4ac
Δ = 102-4·(-4.9)·828
Δ = 16328.8
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(10)-\sqrt{16328.8}}{2*-4.9}=\frac{-10-\sqrt{16328.8}}{-9.8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(10)+\sqrt{16328.8}}{2*-4.9}=\frac{-10+\sqrt{16328.8}}{-9.8} $
| r+4.1=5.9 | | 5(4x+54)=2(x+36) | | 3.3=6.8-0.7x | | x2-57=55 | | 6+9b=10/ | | -m-3=-9+m | | -30=4x+16 | | V=x(18-2x)(14-2x) | | 9s=10+s8 | | 1/2(8x-10)=-17 | | 9+6u=-7+4u | | 25x-89=109 | | 3x+10=320 | | -5(x-4)+11=91 | | 11x+16=54 | | 15x2-40x=-20x2-8x | | M+m+12=32 | | 2+3x+8x=3(x+2)+7(2x-4) | | 4y+1=63 | | -5(x-4)+11=94 | | h(-4)=2*5 | | 6(x+5)+2=56 | | 7(-x+5)=56 | | 0.66x-3=8-3x | | 4p-3=3p+1 | | 85+5x=10(-x+1) | | x^2+x-20=70 | | 3=1/3(10x−12) | | 14-(6x-5)=5(2×-1)-4x | | -6r-21=75 | | -32(n+17)+20(n-1)=-22n+22n | | f/6=2.5 |