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Simplifying 15r2 + 26rs + 8s2 = 15r2 + 6rs + 20rs + 8s2 Reorder the terms: 26rs + 15r2 + 8s2 = 15r2 + 6rs + 20rs + 8s2 Reorder the terms: 26rs + 15r2 + 8s2 = 6rs + 20rs + 15r2 + 8s2 Combine like terms: 6rs + 20rs = 26rs 26rs + 15r2 + 8s2 = 26rs + 15r2 + 8s2 Add '-26rs' to each side of the equation. 26rs + 15r2 + -26rs + 8s2 = 26rs + 15r2 + -26rs + 8s2 Reorder the terms: 26rs + -26rs + 15r2 + 8s2 = 26rs + 15r2 + -26rs + 8s2 Combine like terms: 26rs + -26rs = 0 0 + 15r2 + 8s2 = 26rs + 15r2 + -26rs + 8s2 15r2 + 8s2 = 26rs + 15r2 + -26rs + 8s2 Reorder the terms: 15r2 + 8s2 = 26rs + -26rs + 15r2 + 8s2 Combine like terms: 26rs + -26rs = 0 15r2 + 8s2 = 0 + 15r2 + 8s2 15r2 + 8s2 = 15r2 + 8s2 Add '-15r2' to each side of the equation. 15r2 + -15r2 + 8s2 = 15r2 + -15r2 + 8s2 Combine like terms: 15r2 + -15r2 = 0 0 + 8s2 = 15r2 + -15r2 + 8s2 8s2 = 15r2 + -15r2 + 8s2 Combine like terms: 15r2 + -15r2 = 0 8s2 = 0 + 8s2 8s2 = 8s2 Add '-8s2' to each side of the equation. 8s2 + -8s2 = 8s2 + -8s2 Combine like terms: 8s2 + -8s2 = 0 0 = 8s2 + -8s2 Combine like terms: 8s2 + -8s2 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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