Question

class 9th multiply (root 3+root 2) and (2 root 5 + 7 root 3)
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Answer 1

21 + 2√15 + 2√10 + 7√6

Step-by-step explanation:

Multiply (root 3 + root 2) and (2 root 5 + 7 root 3)

=> (√3 + √2) × (2√5 + 7√3)

=> {√3 × (2√5 + 7√3)} + {√2 × (2√5 + 7√3)}

=> (√3 × 2√5) + (√3 × 7√3) + (√2 × 2√5) + (√2 × 7√3)

=> 2√15 + 7√9 + 2√10 + 7√6

=> 2√15 + 2√10 + 7√6 + 7×3

=> 21 + 2√15 + 2√10 + 7√6

Hence the product will be 21 + 2√15 + 2√10 + 7√6

hope it helps.