If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (r + 4)(2r + 5) = 0 Reorder the terms: (4 + r)(2r + 5) = 0 Reorder the terms: (4 + r)(5 + 2r) = 0 Multiply (4 + r) * (5 + 2r) (4(5 + 2r) + r(5 + 2r)) = 0 ((5 * 4 + 2r * 4) + r(5 + 2r)) = 0 ((20 + 8r) + r(5 + 2r)) = 0 (20 + 8r + (5 * r + 2r * r)) = 0 (20 + 8r + (5r + 2r2)) = 0 Combine like terms: 8r + 5r = 13r (20 + 13r + 2r2) = 0 Solving 20 + 13r + 2r2 = 0 Solving for variable 'r'. Factor a trinomial. (4 + r)(5 + 2r) = 0Subproblem 1
Set the factor '(4 + r)' equal to zero and attempt to solve: Simplifying 4 + r = 0 Solving 4 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + r = 0 + -4 r = 0 + -4 Combine like terms: 0 + -4 = -4 r = -4 Simplifying r = -4Subproblem 2
Set the factor '(5 + 2r)' equal to zero and attempt to solve: Simplifying 5 + 2r = 0 Solving 5 + 2r = 0 Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2r = 0 + -5 2r = 0 + -5 Combine like terms: 0 + -5 = -5 2r = -5 Divide each side by '2'. r = -2.5 Simplifying r = -2.5Solution
r = {-4, -2.5}
| N^2-16n-57=0 | | .75+.83=5x-41.6 | | x(2x+4)=80 | | (10a+7)(3a-7)=0 | | y+5=m(x-2) | | 8=3x+3y | | 9(2+3x)=5(5x+6) | | 5b+3b-1=(b+2) | | V=3*4*4*12 | | 7(3x-13)=244 | | 3x+7+2(4x+3)=10-4(x+2)+2 | | 7x^2+9x=5 | | 2x^2+4x=80 | | (2v-5)(v-4)=0 | | -2x+6-2x=34 | | 3(2x-1)-2(x-3)=5-(x-5) | | 15-(3m+6)=5+4m-17 | | [-5x+6(-3-4x)]+x=2x+1 | | 4+5(4x-2)=(2x+3) | | -6a+7=4a+57 | | 7k-6=-19 | | 5-8(p+4)=-2(4p)-7 | | 0.8x=tanhx | | 3x+9-5x=3 | | (3v+1)(v-5)=0 | | -6(-5+3x)=30 | | 6g-8=5g+16 | | M^2+2m-38=0 | | -6(10-3x)=120 | | 4x-6-5x=-1 | | ln(3x+-2)=4 | | 4(-5x+5)=-80 |