12r^2+16rs+15rs+20s^2=

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Solution for 12r^2+16rs+15rs+20s^2= equation:


Simplifying
12r2 + 16rs + 15rs + 20s2 = 0

Reorder the terms:
16rs + 15rs + 12r2 + 20s2 = 0

Combine like terms: 16rs + 15rs = 31rs
31rs + 12r2 + 20s2 = 0

Solving
31rs + 12r2 + 20s2 = 0

Solving for variable 'r'.

Factor a trinomial.
(4r + 5s)(3r + 4s) = 0

Subproblem 1

Set the factor '(4r + 5s)' equal to zero and attempt to solve: Simplifying 4r + 5s = 0 Solving 4r + 5s = 0 Move all terms containing r to the left, all other terms to the right. Add '-5s' to each side of the equation. 4r + 5s + -5s = 0 + -5s Combine like terms: 5s + -5s = 0 4r + 0 = 0 + -5s 4r = 0 + -5s Remove the zero: 4r = -5s Divide each side by '4'. r = -1.25s Simplifying r = -1.25s

Subproblem 2

Set the factor '(3r + 4s)' equal to zero and attempt to solve: Simplifying 3r + 4s = 0 Solving 3r + 4s = 0 Move all terms containing r to the left, all other terms to the right. Add '-4s' to each side of the equation. 3r + 4s + -4s = 0 + -4s Combine like terms: 4s + -4s = 0 3r + 0 = 0 + -4s 3r = 0 + -4s Remove the zero: 3r = -4s Divide each side by '3'. r = -1.333333333s Simplifying r = -1.333333333s

Solution

r = {-1.25s, -1.333333333s}

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