🎴 Flashcard Mode
Surds (addition, subtraction, multiplying and dividing)
Card1 / 10
Mastered0
Review0
QuestionClick to flip
4√15 x 2√18
AnswerClick to flip back
A
24√30
💡 Explanation:
Multiply the coefficients (4 * 2 = 8) and the radicands (sqrt(15) * sqrt(18) = sqrt(270)). Simplify sqrt(270) = sqrt(9 * 30) = 3 * sqrt(30). Thus, 8 * 3 * sqrt(30) = 24 * sqrt(30).