If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 + 2r + -10 = 0 Reorder the terms: -10 + 2r + r2 = 0 Solving -10 + 2r + r2 = 0 Solving for variable 'r'. Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + 2r + 10 + r2 = 0 + 10 Reorder the terms: -10 + 10 + 2r + r2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + 2r + r2 = 0 + 10 2r + r2 = 0 + 10 Combine like terms: 0 + 10 = 10 2r + r2 = 10 The r term is 2r. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2r + 1 + r2 = 10 + 1 Reorder the terms: 1 + 2r + r2 = 10 + 1 Combine like terms: 10 + 1 = 11 1 + 2r + r2 = 11 Factor a perfect square on the left side: (r + 1)(r + 1) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (r + 1) equal to 3.31662479 and -3.31662479.Subproblem 1
r + 1 = 3.31662479 Simplifying r + 1 = 3.31662479 Reorder the terms: 1 + r = 3.31662479 Solving 1 + r = 3.31662479 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + r = 3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + r = 3.31662479 + -1 r = 3.31662479 + -1 Combine like terms: 3.31662479 + -1 = 2.31662479 r = 2.31662479 Simplifying r = 2.31662479Subproblem 2
r + 1 = -3.31662479 Simplifying r + 1 = -3.31662479 Reorder the terms: 1 + r = -3.31662479 Solving 1 + r = -3.31662479 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + r = -3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + r = -3.31662479 + -1 r = -3.31662479 + -1 Combine like terms: -3.31662479 + -1 = -4.31662479 r = -4.31662479 Simplifying r = -4.31662479Solution
The solution to the problem is based on the solutions from the subproblems. r = {2.31662479, -4.31662479}
| 1-2(x+3)+4=1 | | -107-2x=8x+53 | | -17=6x-2 | | -91-x=9x+39 | | 10x^4-10x=0 | | 31j^2-10j=0 | | y=2x^2-4 | | -7=-77y | | 46.9-3x=26+8x | | 5+(4+y)= | | -15-2x=12+x | | r^2+12r+36+r^2=81 | | (x^3+2x+2)(x^2-x-1)= | | -32+7x=16+4x | | 7x-8(x+3)=14 | | 4-[(5-9)-2]= | | 5+2x+x=3x-3+8 | | 25x=480 | | -4=-(x+9) | | x-61=-3x+23 | | 6x-14=-2(8x+x) | | 231.34x=2082.06 | | (2x^2+5x+5)(4x-3)= | | -134-5x=8x+35 | | 2x-3/x-4=2/3 | | 3q^2-2q-16=9 | | 4k-15+7k-48= | | 5xu=12 | | 7v-4=5v+10 | | f(x)=-16x^2+64x | | H(t)=160t-10t^2 | | 23c=207 |