If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying f(0) = -5x2 + 3x + 9 Reorder the terms for easier multiplication: 0f = -5x2 + 3x + 9 Anything times zero is zero. 0f = -5x2 + 3x + 9 Reorder the terms: 0 = 9 + 3x + -5x2 Solving 0 = 9 + 3x + -5x2 Solving for variable 'x'. Combine like terms: 0 + -9 = -9 -9 + -3x + 5x2 = 9 + 3x + -5x2 + -9 + -3x + 5x2 Reorder the terms: -9 + -3x + 5x2 = 9 + -9 + 3x + -3x + -5x2 + 5x2 Combine like terms: 9 + -9 = 0 -9 + -3x + 5x2 = 0 + 3x + -3x + -5x2 + 5x2 -9 + -3x + 5x2 = 3x + -3x + -5x2 + 5x2 Combine like terms: 3x + -3x = 0 -9 + -3x + 5x2 = 0 + -5x2 + 5x2 -9 + -3x + 5x2 = -5x2 + 5x2 Combine like terms: -5x2 + 5x2 = 0 -9 + -3x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -1.8 + -0.6x + x2 = 0 Move the constant term to the right: Add '1.8' to each side of the equation. -1.8 + -0.6x + 1.8 + x2 = 0 + 1.8 Reorder the terms: -1.8 + 1.8 + -0.6x + x2 = 0 + 1.8 Combine like terms: -1.8 + 1.8 = 0.0 0.0 + -0.6x + x2 = 0 + 1.8 -0.6x + x2 = 0 + 1.8 Combine like terms: 0 + 1.8 = 1.8 -0.6x + x2 = 1.8 The x term is -0.6x. Take half its coefficient (-0.3). Square it (0.09) and add it to both sides. Add '0.09' to each side of the equation. -0.6x + 0.09 + x2 = 1.8 + 0.09 Reorder the terms: 0.09 + -0.6x + x2 = 1.8 + 0.09 Combine like terms: 1.8 + 0.09 = 1.89 0.09 + -0.6x + x2 = 1.89 Factor a perfect square on the left side: (x + -0.3)(x + -0.3) = 1.89 Calculate the square root of the right side: 1.374772708 Break this problem into two subproblems by setting (x + -0.3) equal to 1.374772708 and -1.374772708.Subproblem 1
x + -0.3 = 1.374772708 Simplifying x + -0.3 = 1.374772708 Reorder the terms: -0.3 + x = 1.374772708 Solving -0.3 + x = 1.374772708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = 1.374772708 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = 1.374772708 + 0.3 x = 1.374772708 + 0.3 Combine like terms: 1.374772708 + 0.3 = 1.674772708 x = 1.674772708 Simplifying x = 1.674772708Subproblem 2
x + -0.3 = -1.374772708 Simplifying x + -0.3 = -1.374772708 Reorder the terms: -0.3 + x = -1.374772708 Solving -0.3 + x = -1.374772708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = -1.374772708 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = -1.374772708 + 0.3 x = -1.374772708 + 0.3 Combine like terms: -1.374772708 + 0.3 = -1.074772708 x = -1.074772708 Simplifying x = -1.074772708Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.674772708, -1.074772708}
| 15x=14x+2 | | 5x+25=3x+25 | | 12x=12+8x | | 6000=-4000/3*12+b | | 6x+2=17+x | | f(0)=-9x^2+4x+7 | | f(x)=-9x^2+4x+7 | | (b+6)/5=10 | | 11-3x=14+2x | | 10x-7=17-2x | | 6000=-16000*12+b | | 13-(2c+2)=2(c+2)+2 | | 2x+7=10x+5 | | -2/3y-6/5=-5/4 | | -40y=-3 | | 9x=2x-14 | | 1/4(2x-7)=4 | | Y=-5*0-7 | | 6*-14= | | -127=-5x-7 | | 2(3x-5)=35-3x | | Y=-5*12-7 | | -100=-5x-7 | | -7/3(-3)+6 | | 9*X-10=35 | | x^8-x^4-240=0 | | 3x^2-30x+225=0 | | -16/(-2) | | 12=(p)(5)(6) | | 6(-3)= | | 4-(-5)-(10)= | | x^2+4=73 |