If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -16x2 + 90x + 7 = 0 Reorder the terms: 7 + 90x + -16x2 = 0 Solving 7 + 90x + -16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. -0.4375 + -5.625x + x2 = 0 Move the constant term to the right: Add '0.4375' to each side of the equation. -0.4375 + -5.625x + 0.4375 + x2 = 0 + 0.4375 Reorder the terms: -0.4375 + 0.4375 + -5.625x + x2 = 0 + 0.4375 Combine like terms: -0.4375 + 0.4375 = 0.0000 0.0000 + -5.625x + x2 = 0 + 0.4375 -5.625x + x2 = 0 + 0.4375 Combine like terms: 0 + 0.4375 = 0.4375 -5.625x + x2 = 0.4375 The x term is -5.625x. Take half its coefficient (-2.8125). Square it (7.91015625) and add it to both sides. Add '7.91015625' to each side of the equation. -5.625x + 7.91015625 + x2 = 0.4375 + 7.91015625 Reorder the terms: 7.91015625 + -5.625x + x2 = 0.4375 + 7.91015625 Combine like terms: 0.4375 + 7.91015625 = 8.34765625 7.91015625 + -5.625x + x2 = 8.34765625 Factor a perfect square on the left side: (x + -2.8125)(x + -2.8125) = 8.34765625 Calculate the square root of the right side: 2.889231083 Break this problem into two subproblems by setting (x + -2.8125) equal to 2.889231083 and -2.889231083.Subproblem 1
x + -2.8125 = 2.889231083 Simplifying x + -2.8125 = 2.889231083 Reorder the terms: -2.8125 + x = 2.889231083 Solving -2.8125 + x = 2.889231083 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.8125' to each side of the equation. -2.8125 + 2.8125 + x = 2.889231083 + 2.8125 Combine like terms: -2.8125 + 2.8125 = 0.0000 0.0000 + x = 2.889231083 + 2.8125 x = 2.889231083 + 2.8125 Combine like terms: 2.889231083 + 2.8125 = 5.701731083 x = 5.701731083 Simplifying x = 5.701731083Subproblem 2
x + -2.8125 = -2.889231083 Simplifying x + -2.8125 = -2.889231083 Reorder the terms: -2.8125 + x = -2.889231083 Solving -2.8125 + x = -2.889231083 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.8125' to each side of the equation. -2.8125 + 2.8125 + x = -2.889231083 + 2.8125 Combine like terms: -2.8125 + 2.8125 = 0.0000 0.0000 + x = -2.889231083 + 2.8125 x = -2.889231083 + 2.8125 Combine like terms: -2.889231083 + 2.8125 = -0.076731083 x = -0.076731083 Simplifying x = -0.076731083Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.701731083, -0.076731083}
| x+102+x+102=180 | | 5x-12=3x+12 | | 30-18=2(x-6) | | 26x-13y=52 | | 2X^3+6X^2-15=0 | | -4x+6=2+2(-2x-2) | | 11-5(3-x)=2(x+3)+6x | | 34=5+8(v+6) | | 5x-11=10x-13 | | x+5=9-2 | | 2x-3+3x=X+6 | | 2(7b-8)=-28+6b | | 5|2x+3|=15 | | 7x+3x-14=24 | | -5+x-9x=3 | | 7(1-9a)=-17 | | x+7+x+7=5x-1 | | 20x-5=18x+7 | | (-3)-8x+5x=4-4x | | 2(c-6)=9x+2 | | 7p+7(3-4p)=63 | | 4x-30+8y+25=180 | | X+4x=65 | | 4-4y=2(2y-2) | | 3y+4y=18 | | 60/x+10=40 | | 60/x+10=50 | | 4x+30+8y+25=180 | | 20x^2=-24x | | X^2+2x-5=12 | | 60/x+10=5 | | 3x-12=5(x-4) |