If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + 4x = 20 Reorder the terms: 4x + -2x2 = 20 Solving 4x + -2x2 = 20 Solving for variable 'x'. Reorder the terms: -20 + 4x + -2x2 = 20 + -20 Combine like terms: 20 + -20 = 0 -20 + 4x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-10 + 2x + -1x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-10 + 2x + -1x2)' equal to zero and attempt to solve: Simplifying -10 + 2x + -1x2 = 0 Solving -10 + 2x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 10 + -2x + x2 = 0 Move the constant term to the right: Add '-10' to each side of the equation. 10 + -2x + -10 + x2 = 0 + -10 Reorder the terms: 10 + -10 + -2x + x2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -2x + x2 = 0 + -10 -2x + x2 = 0 + -10 Combine like terms: 0 + -10 = -10 -2x + x2 = -10 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 = -10 + 1 Reorder the terms: 1 + -2x + x2 = -10 + 1 Combine like terms: -10 + 1 = -9 1 + -2x + x2 = -9 Factor a perfect square on the left side: (x + -1)(x + -1) = -9 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 16=-4(7s-8) | | -10.1q+7=-59.2-1.4q | | 15x-6x=9 | | x+14=7x+14 | | 8f+9f=-17 | | 18n-13n=10 | | 2(x-5)+2x=3x-3 | | 7a-27=10a | | y=120+10x | | 14=x^2+7x-8 | | 0.9m=0.1m+32 | | 8.28-r=5x | | 2xsquared-3x-15=5 | | 6+9(1-7x)=15 | | 3(.5)+7=y | | z=(2+5i)+(3-4i) | | 2.3n-12=15 | | P^2-22p+c=0 | | 15h-14h=17h | | 9y+2-6=-35 | | 15h-14h=17 | | 7x+4y=440 | | 12x+50y=112 | | 6x*2y=12xy | | 5sin(x)+7cos(x)=0 | | -8(3a-6)=25 | | 11-(4+5x)+(4x-2)=0 | | 8x+20=3(2x-12) | | (5m-4n)(2m+12n)=0 | | 118=5p+6(2p-3) | | (2x^2-3x-y+2)=0 | | 12b^2+4b=10 |