If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying a2 + -4a = 9 Reorder the terms: -4a + a2 = 9 Solving -4a + a2 = 9 Solving for variable 'a'. Reorder the terms: -9 + -4a + a2 = 9 + -9 Combine like terms: 9 + -9 = 0 -9 + -4a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + -4a + 9 + a2 = 0 + 9 Reorder the terms: -9 + 9 + -4a + a2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -4a + a2 = 0 + 9 -4a + a2 = 0 + 9 Combine like terms: 0 + 9 = 9 -4a + a2 = 9 The a term is -4a. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4a + 4 + a2 = 9 + 4 Reorder the terms: 4 + -4a + a2 = 9 + 4 Combine like terms: 9 + 4 = 13 4 + -4a + a2 = 13 Factor a perfect square on the left side: (a + -2)(a + -2) = 13 Calculate the square root of the right side: 3.605551275 Break this problem into two subproblems by setting (a + -2) equal to 3.605551275 and -3.605551275.Subproblem 1
a + -2 = 3.605551275 Simplifying a + -2 = 3.605551275 Reorder the terms: -2 + a = 3.605551275 Solving -2 + a = 3.605551275 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + a = 3.605551275 + 2 Combine like terms: -2 + 2 = 0 0 + a = 3.605551275 + 2 a = 3.605551275 + 2 Combine like terms: 3.605551275 + 2 = 5.605551275 a = 5.605551275 Simplifying a = 5.605551275Subproblem 2
a + -2 = -3.605551275 Simplifying a + -2 = -3.605551275 Reorder the terms: -2 + a = -3.605551275 Solving -2 + a = -3.605551275 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + a = -3.605551275 + 2 Combine like terms: -2 + 2 = 0 0 + a = -3.605551275 + 2 a = -3.605551275 + 2 Combine like terms: -3.605551275 + 2 = -1.605551275 a = -1.605551275 Simplifying a = -1.605551275Solution
The solution to the problem is based on the solutions from the subproblems. a = {5.605551275, -1.605551275}
| 8y+12=6y-4 | | 0=2x^2-4x-6 | | 3x-8=3(x-9) | | 7=z/-8 | | 2(2x-3)=3(x+1) | | y=2/3x-7 | | -x+11=5x+2(7x-2) | | 5n^2-4=n | | x+2v=-9 | | -7.2=6y | | 2x-2+8x-4=5x+8-x+4 | | 2/5(2x+13)=4(3-2x)+2 | | 4d-2=3-11d | | x^2+y^2+4x-8y+16=0 | | n^2+7=8n | | 3x+131/11=10 | | -2+k/6=10 | | x^2+y^2-4x-1=0 | | 7m^2-18m+8=0 | | 6x+11=3x+98 | | 7a+3=-53 | | xy+2y-6=0 | | 3r+14=7 | | 4-2(x+3)=13-5(x+4) | | -3(4x-9)+5=-12x+32 | | 10x+6=3(3x-1)+9 | | -2x+10+4x/2=4 | | -9x-21=-61 | | (x+4)^2-20/4 | | 3/4x+2x=22 | | 1/15x+1/5x=2/3x | | 2(2m-3n)-8n= |