Find Conjugate: Select the conjugate of 6+3. Conjugate of a+b: a−b Conjugate of 6+3: 6−3
Rationalize Denominator: Multiply the numerator and the denominator by the conjugate of the denominator to rationalize it.Expression to rationalize the denominator: (−6)/(6+3)Multiply by (6−3)/(6−3)(−6⋅(6−3))/((6+3)⋅(6−3))
Simplify Numerator: Simplify the numerator: −6×(6−3)−6×6−(−6)×3=−36+63
Simplify Denominator: Simplify the denominator: (6+3)∗(6−3) Using the difference of squares formula: a2−b2(6)2−(3)2 = 36−3 = 33
Combine Numerator and Denominator: Combine the simplified numerator and denominator.(−36+63)/33This fraction can be further simplified by dividing both terms in the numerator by 33.(−36/33)+(63/33)=−12/11+(23/11)
More problems from Simplify radical expressions using conjugates