If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -4.9x2 + 280x + 115 = 0 Reorder the terms: 115 + 280x + -4.9x2 = 0 Solving 115 + 280x + -4.9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -4.9 the coefficient of the squared term: Divide each side by '-4.9'. -23.46938776 + -57.14285714x + x2 = 0 Move the constant term to the right: Add '23.46938776' to each side of the equation. -23.46938776 + -57.14285714x + 23.46938776 + x2 = 0 + 23.46938776 Reorder the terms: -23.46938776 + 23.46938776 + -57.14285714x + x2 = 0 + 23.46938776 Combine like terms: -23.46938776 + 23.46938776 = 0.00000000 0.00000000 + -57.14285714x + x2 = 0 + 23.46938776 -57.14285714x + x2 = 0 + 23.46938776 Combine like terms: 0 + 23.46938776 = 23.46938776 -57.14285714x + x2 = 23.46938776 The x term is -57.14285714x. Take half its coefficient (-28.57142857). Square it (816.3265305) and add it to both sides. Add '816.3265305' to each side of the equation. -57.14285714x + 816.3265305 + x2 = 23.46938776 + 816.3265305 Reorder the terms: 816.3265305 + -57.14285714x + x2 = 23.46938776 + 816.3265305 Combine like terms: 23.46938776 + 816.3265305 = 839.79591826 816.3265305 + -57.14285714x + x2 = 839.79591826 Factor a perfect square on the left side: (x + -28.57142857)(x + -28.57142857) = 839.79591826 Calculate the square root of the right side: 28.979232534 Break this problem into two subproblems by setting (x + -28.57142857) equal to 28.979232534 and -28.979232534.Subproblem 1
x + -28.57142857 = 28.979232534 Simplifying x + -28.57142857 = 28.979232534 Reorder the terms: -28.57142857 + x = 28.979232534 Solving -28.57142857 + x = 28.979232534 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28.57142857' to each side of the equation. -28.57142857 + 28.57142857 + x = 28.979232534 + 28.57142857 Combine like terms: -28.57142857 + 28.57142857 = 0.00000000 0.00000000 + x = 28.979232534 + 28.57142857 x = 28.979232534 + 28.57142857 Combine like terms: 28.979232534 + 28.57142857 = 57.550661104 x = 57.550661104 Simplifying x = 57.550661104Subproblem 2
x + -28.57142857 = -28.979232534 Simplifying x + -28.57142857 = -28.979232534 Reorder the terms: -28.57142857 + x = -28.979232534 Solving -28.57142857 + x = -28.979232534 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28.57142857' to each side of the equation. -28.57142857 + 28.57142857 + x = -28.979232534 + 28.57142857 Combine like terms: -28.57142857 + 28.57142857 = 0.00000000 0.00000000 + x = -28.979232534 + 28.57142857 x = -28.979232534 + 28.57142857 Combine like terms: -28.979232534 + 28.57142857 = -0.407803964 x = -0.407803964 Simplifying x = -0.407803964Solution
The solution to the problem is based on the solutions from the subproblems. x = {57.550661104, -0.407803964}
| Y=-1/2x^2+3/2x+3 | | -28+6p=70 | | (2x-3)(x+3)=0 | | -6+t-1=6 | | 75=3+2x | | -(m+-9)=2 | | 5=11-6x | | 6+25=86 | | -(-10)=7 | | t=0.8-500+4650 | | (5t+9)-3t-13=2(11+t) | | -7(-4)(x-6)=4(x)-6 | | .7(x+10)+.1x=23 | | x+1/4-3x-1/8=x/2 | | 9-6x-5-8=6 | | -6-5m^2=-506 | | 3x(5)= | | -4(d+1)+2(d-2)=10/3 | | f(4)=2x+34(11-9) | | 8(-1+v)=56 | | x^2-14x-10=0 | | 3x+12+2x+8=90 | | 9m=8(q+7) | | 6(x+4)=3(2x+2)+18 | | (x+7)Xy=10 | | -m-24=5+m | | -m+24=5-m | | 2x(64-4)= | | x+-5=15 | | 8(2)(x-4)=19-x | | 7x-2=35-x | | y-7=5/4(x-3) |