If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 21x + -15 = 0 Reorder the terms: -15 + 21x + 2x2 = 0 Solving -15 + 21x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -7.5 + 10.5x + x2 = 0 Move the constant term to the right: Add '7.5' to each side of the equation. -7.5 + 10.5x + 7.5 + x2 = 0 + 7.5 Reorder the terms: -7.5 + 7.5 + 10.5x + x2 = 0 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + 10.5x + x2 = 0 + 7.5 10.5x + x2 = 0 + 7.5 Combine like terms: 0 + 7.5 = 7.5 10.5x + x2 = 7.5 The x term is 10.5x. Take half its coefficient (5.25). Square it (27.5625) and add it to both sides. Add '27.5625' to each side of the equation. 10.5x + 27.5625 + x2 = 7.5 + 27.5625 Reorder the terms: 27.5625 + 10.5x + x2 = 7.5 + 27.5625 Combine like terms: 7.5 + 27.5625 = 35.0625 27.5625 + 10.5x + x2 = 35.0625 Factor a perfect square on the left side: (x + 5.25)(x + 5.25) = 35.0625 Calculate the square root of the right side: 5.921359641 Break this problem into two subproblems by setting (x + 5.25) equal to 5.921359641 and -5.921359641.Subproblem 1
x + 5.25 = 5.921359641 Simplifying x + 5.25 = 5.921359641 Reorder the terms: 5.25 + x = 5.921359641 Solving 5.25 + x = 5.921359641 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.25' to each side of the equation. 5.25 + -5.25 + x = 5.921359641 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + x = 5.921359641 + -5.25 x = 5.921359641 + -5.25 Combine like terms: 5.921359641 + -5.25 = 0.671359641 x = 0.671359641 Simplifying x = 0.671359641Subproblem 2
x + 5.25 = -5.921359641 Simplifying x + 5.25 = -5.921359641 Reorder the terms: 5.25 + x = -5.921359641 Solving 5.25 + x = -5.921359641 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.25' to each side of the equation. 5.25 + -5.25 + x = -5.921359641 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + x = -5.921359641 + -5.25 x = -5.921359641 + -5.25 Combine like terms: -5.921359641 + -5.25 = -11.171359641 x = -11.171359641 Simplifying x = -11.171359641Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.671359641, -11.171359641}
| p-38=-18 | | R=-4p^2+28000p | | R(p)=-4p^2+28000p | | p-4=7 | | 6=6-5x-3x | | 10+.5x=15+25x | | -3(-4v+2)-6v=2(v-3)-2 | | 10+.5x=1+25x | | 3-6(4n-4)=27-4n | | =3x+(44*3) | | 9x-5=10x-19 | | 5(v+3)=-2(7v-5)+4v | | 137=4x+163 | | 250=.04v^2+1.1v | | -18=7y+9-10w | | 5x-x+3=341 | | -5x+42=-8(x-9) | | 45=-25+25x | | 12u=3u+18 | | -r+8(-5r-r)= | | 3(x-12)+6=2x-30+x | | -5+n=89 | | -5+n=89 | | 5x=4x+15 | | 3x^2-12x+33=0 | | 3. 5x=4x+15 | | 8k-5(-5k+3)= | | 3x-5x-7x=10 | | 4e^18x=11 | | 4x-24y=36 | | 4x-4=6x-5 | | q^2+200=-10q |