If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying a2 + 18a + 81 = 90 Reorder the terms: 81 + 18a + a2 = 90 Solving 81 + 18a + a2 = 90 Solving for variable 'a'. Reorder the terms: 81 + -90 + 18a + a2 = 90 + -90 Combine like terms: 81 + -90 = -9 -9 + 18a + a2 = 90 + -90 Combine like terms: 90 + -90 = 0 -9 + 18a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + 18a + 9 + a2 = 0 + 9 Reorder the terms: -9 + 9 + 18a + a2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 18a + a2 = 0 + 9 18a + a2 = 0 + 9 Combine like terms: 0 + 9 = 9 18a + a2 = 9 The a term is 18a. Take half its coefficient (9). Square it (81) and add it to both sides. Add '81' to each side of the equation. 18a + 81 + a2 = 9 + 81 Reorder the terms: 81 + 18a + a2 = 9 + 81 Combine like terms: 9 + 81 = 90 81 + 18a + a2 = 90 Factor a perfect square on the left side: (a + 9)(a + 9) = 90 Calculate the square root of the right side: 9.486832981 Break this problem into two subproblems by setting (a + 9) equal to 9.486832981 and -9.486832981.Subproblem 1
a + 9 = 9.486832981 Simplifying a + 9 = 9.486832981 Reorder the terms: 9 + a = 9.486832981 Solving 9 + a = 9.486832981 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + a = 9.486832981 + -9 Combine like terms: 9 + -9 = 0 0 + a = 9.486832981 + -9 a = 9.486832981 + -9 Combine like terms: 9.486832981 + -9 = 0.486832981 a = 0.486832981 Simplifying a = 0.486832981Subproblem 2
a + 9 = -9.486832981 Simplifying a + 9 = -9.486832981 Reorder the terms: 9 + a = -9.486832981 Solving 9 + a = -9.486832981 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + a = -9.486832981 + -9 Combine like terms: 9 + -9 = 0 0 + a = -9.486832981 + -9 a = -9.486832981 + -9 Combine like terms: -9.486832981 + -9 = -18.486832981 a = -18.486832981 Simplifying a = -18.486832981Solution
The solution to the problem is based on the solutions from the subproblems. a = {0.486832981, -18.486832981}
| 9-6x=-47 | | n/3-10=-4 | | 2(n+2)+6=n | | 7(-3m+5)=3(10+6m) | | 2(n)-6=14 | | 8/c=8 | | 8[5-(4-x)]+2x=2(5x+5)-2 | | 2n-6=14 | | -x^2+1z+20=0 | | 1/(m+6)=4 | | 12+3p=8 | | -6=-4+p/7 | | j+12= | | 2/3(a-3)=0.3 | | 21x^2+19x-19=-7 | | 5x-1=2(2x+5)-9 | | 2p+3(p+3)=19 | | 16+r=-2 | | 15+4(m-2)=23 | | 14/5-1/3 | | 4x^2-14x=-2x^2-7x-1 | | 7=10-x/-2 | | 10(v+4)-4v=2(3v+3)-12 | | 7a+23=9 | | -3x^2+14x=12 | | p=-14 | | b+10/2 | | 3x^3+16x^2-35x=0 | | 4y+3y=12 | | 1/3(x^2-6x+9)=2 | | 0.17y+0.02(y+9000)=1700 | | -108-8x=8x+22 |