If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 5y2 + 21y = 4 Reorder the terms: 21y + 5y2 = 4 Solving 21y + 5y2 = 4 Solving for variable 'y'. Reorder the terms: -4 + 21y + 5y2 = 4 + -4 Combine like terms: 4 + -4 = 0 -4 + 21y + 5y2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.8 + 4.2y + y2 = 0 Move the constant term to the right: Add '0.8' to each side of the equation. -0.8 + 4.2y + 0.8 + y2 = 0 + 0.8 Reorder the terms: -0.8 + 0.8 + 4.2y + y2 = 0 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + 4.2y + y2 = 0 + 0.8 4.2y + y2 = 0 + 0.8 Combine like terms: 0 + 0.8 = 0.8 4.2y + y2 = 0.8 The y term is 4.2y. Take half its coefficient (2.1). Square it (4.41) and add it to both sides. Add '4.41' to each side of the equation. 4.2y + 4.41 + y2 = 0.8 + 4.41 Reorder the terms: 4.41 + 4.2y + y2 = 0.8 + 4.41 Combine like terms: 0.8 + 4.41 = 5.21 4.41 + 4.2y + y2 = 5.21 Factor a perfect square on the left side: (y + 2.1)(y + 2.1) = 5.21 Calculate the square root of the right side: 2.282542442 Break this problem into two subproblems by setting (y + 2.1) equal to 2.282542442 and -2.282542442.Subproblem 1
y + 2.1 = 2.282542442 Simplifying y + 2.1 = 2.282542442 Reorder the terms: 2.1 + y = 2.282542442 Solving 2.1 + y = 2.282542442 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.1' to each side of the equation. 2.1 + -2.1 + y = 2.282542442 + -2.1 Combine like terms: 2.1 + -2.1 = 0.0 0.0 + y = 2.282542442 + -2.1 y = 2.282542442 + -2.1 Combine like terms: 2.282542442 + -2.1 = 0.182542442 y = 0.182542442 Simplifying y = 0.182542442Subproblem 2
y + 2.1 = -2.282542442 Simplifying y + 2.1 = -2.282542442 Reorder the terms: 2.1 + y = -2.282542442 Solving 2.1 + y = -2.282542442 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.1' to each side of the equation. 2.1 + -2.1 + y = -2.282542442 + -2.1 Combine like terms: 2.1 + -2.1 = 0.0 0.0 + y = -2.282542442 + -2.1 y = -2.282542442 + -2.1 Combine like terms: -2.282542442 + -2.1 = -4.382542442 y = -4.382542442 Simplifying y = -4.382542442Solution
The solution to the problem is based on the solutions from the subproblems. y = {0.182542442, -4.382542442}
| -2(7y+3)= | | 9x^2-10x=0 | | 2x^3=32 | | X+(30+X)=50.50 | | y^2+72.25=-17y | | 6x+3x-50+x=180 | | 2x-3+2x=2 | | 10x+15=100-x | | 6x-7=4x+8 | | 5x-1.2=x | | 11x+12=50-x | | 7x-2=-10 | | 7x-2=5x-2 | | 4(2-x)=x+7 | | u^2-2u-15=0 | | -8b-15+6d=12 | | m^3+7m^2+4m-4=0 | | 2(x+6)-9x=51 | | 8(x+2)-7=47 | | 6(x+4)-10=34 | | 5+4z=17 | | 2x^2+y^2=15 | | -16t^2+420t=0 | | 4t^2+23t+28=0 | | -15+50=5 | | 15X-50=-5 | | -5-3X=4 | | 48X+42=30 | | 7x-(-2)=-10 | | 50+15X=5 | | 3.5r+0.7t=37.80 | | (3.5x)-2=4+7x |