If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 9x = 2x + -15 Reorder the terms: 9x + 2x2 = 2x + -15 Reorder the terms: 9x + 2x2 = -15 + 2x Solving 9x + 2x2 = -15 + 2x Solving for variable 'x'. Reorder the terms: 15 + 9x + -2x + 2x2 = -15 + 2x + 15 + -2x Combine like terms: 9x + -2x = 7x 15 + 7x + 2x2 = -15 + 2x + 15 + -2x Reorder the terms: 15 + 7x + 2x2 = -15 + 15 + 2x + -2x Combine like terms: -15 + 15 = 0 15 + 7x + 2x2 = 0 + 2x + -2x 15 + 7x + 2x2 = 2x + -2x Combine like terms: 2x + -2x = 0 15 + 7x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 7.5 + 3.5x + x2 = 0 Move the constant term to the right: Add '-7.5' to each side of the equation. 7.5 + 3.5x + -7.5 + x2 = 0 + -7.5 Reorder the terms: 7.5 + -7.5 + 3.5x + x2 = 0 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + 3.5x + x2 = 0 + -7.5 3.5x + x2 = 0 + -7.5 Combine like terms: 0 + -7.5 = -7.5 3.5x + x2 = -7.5 The x term is 3.5x. Take half its coefficient (1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. 3.5x + 3.0625 + x2 = -7.5 + 3.0625 Reorder the terms: 3.0625 + 3.5x + x2 = -7.5 + 3.0625 Combine like terms: -7.5 + 3.0625 = -4.4375 3.0625 + 3.5x + x2 = -4.4375 Factor a perfect square on the left side: (x + 1.75)(x + 1.75) = -4.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| c(x)=0.8x^2-528x+95825 | | 8+2x=x-5 | | 5log(x-1)=12 | | 24+x-22=27 | | 1/8y5= | | 8+x=-5+x | | 2x+4=-28-6 | | -4/5r=-21/4 | | 3x-0.5+2x=9.5 | | 12(x+3)=4(2x+9)+4c | | 4x+y=3500 | | 96=3x+1x*x+1 | | y*2-16y+64=81 | | 20+x-6=18 | | a*a+42a-12=0 | | 2b*b+3b-2=0 | | -10-3x=3x | | 11/12=w/3.6 | | -33.3(n+15)=-2 | | 30+x-12=51 | | 20=-4(3x+1)+13x | | 7x-3x-14=30 | | 9x^3-3x^3+3x+1= | | 2n*n+n-1=0 | | 3a-8=3a | | 9=-7+8x | | (k+2)*2=16 | | y=2(2.3)-2 | | y=10(0.25x) | | 9x^3-6x^3= | | -8x+5=-15x-10 | | 3x*x+10x+3=0 |