If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 42 + 5x2 = 7x Solving 42 + 5x2 = 7x Solving for variable 'x'. Reorder the terms: 42 + -7x + 5x2 = 7x + -7x Combine like terms: 7x + -7x = 0 42 + -7x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 8.4 + -1.4x + x2 = 0 Move the constant term to the right: Add '-8.4' to each side of the equation. 8.4 + -1.4x + -8.4 + x2 = 0 + -8.4 Reorder the terms: 8.4 + -8.4 + -1.4x + x2 = 0 + -8.4 Combine like terms: 8.4 + -8.4 = 0.0 0.0 + -1.4x + x2 = 0 + -8.4 -1.4x + x2 = 0 + -8.4 Combine like terms: 0 + -8.4 = -8.4 -1.4x + x2 = -8.4 The x term is -1.4x. Take half its coefficient (-0.7). Square it (0.49) and add it to both sides. Add '0.49' to each side of the equation. -1.4x + 0.49 + x2 = -8.4 + 0.49 Reorder the terms: 0.49 + -1.4x + x2 = -8.4 + 0.49 Combine like terms: -8.4 + 0.49 = -7.91 0.49 + -1.4x + x2 = -7.91 Factor a perfect square on the left side: (x + -0.7)(x + -0.7) = -7.91 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 36x^2+14=39 | | x-4+2x-7=x | | 12q-4=12q | | 4x-6x+4x= | | 3x+20=4x-4 | | 20.63=4g+3.79 | | -7+4r=6t-5 | | -4/7y-1/3=1/2 | | f(45)=4/3x-30 | | 10z^3-9z-9=0 | | 12=(6/8)^-3(6m) | | 3-8x=3-(x+7) | | 2q+2q+(2q-49)+(2q-47)+(2q-45)+31=360 | | 4(-8n+5)=-32-26 | | 2x^2+1x=8x-3 | | x(2lnx+1)=0 | | 6/(c-6)=(-1/4) | | 10(-4+k)=2k | | 14x5m/7 | | (p+9)(p+3)=-8 | | 40.00+0.25m=25+0.45m | | 9/10-3/4×2/5 | | 1+4x+7x=13+8x-x | | (4x-9)(3x+5)=0 | | 25x^2-48=1 | | 9(12+4z)=(6z-18) | | 12/7i | | 20x-5+6x+5x-15= | | 2(x+1)=4x-16 | | 7x+5x=60 | | 20x-5+6x+5x-15=180 | | 3/2x=9/4 |