If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 7 = -4x Reorder the terms: 7 + 2x2 = -4x Solving 7 + 2x2 = -4x Solving for variable 'x'. Reorder the terms: 7 + 4x + 2x2 = -4x + 4x Combine like terms: -4x + 4x = 0 7 + 4x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + 2x + x2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + 2x + -3.5 + x2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + 2x + x2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + 2x + x2 = 0 + -3.5 2x + x2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 2x + x2 = -3.5 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = -3.5 + 1 Reorder the terms: 1 + 2x + x2 = -3.5 + 1 Combine like terms: -3.5 + 1 = -2.5 1 + 2x + x2 = -2.5 Factor a perfect square on the left side: (x + 1)(x + 1) = -2.5 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 3x^2=11x+21 | | 9x-5=-14 | | x+2x+3x=100 | | 2*ln(x-5)-ln(2x-13)=1 | | x+2x=100 | | ln(4-x)-2ln(x)=1 | | 2(-5)(-3)= | | 8x^2-5=0 | | ln(x)+ln(x-3)=ln(6x)-ln(x-2) | | 5-7+(-8)-(-3)-2= | | -5-7+(-8)-(-3)-2= | | 8x-63=-4x+9 | | 196x^2=16 | | 256x^2=100 | | x^2-4x+4=81 | | x^2-14x+49=100 | | -7d=50+20d | | 649-x=243 | | x^2-18x+81=81 | | 6+2(8+6x)-9(3x+4)=0 | | -5x+6=-44 | | 2log[4]x=-log[4]16 | | x^2+20x+100=4 | | x+6(4)=x(2)+3x+5(2) | | 12-9x=70-23x | | 2(x+2)-6x=6x+8-2x | | 2x+6=54-84 | | 649-x=493 | | 5(x+4)-2x=5+6x+2x | | -(x^2)-2x-1=0 | | 5x^2+41x+42=0 | | 3x+28=3x |