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Answers
Question
Expand -: (√5 + 5√6)²
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Answer
To expand the given expression, we'll use algebraic identities.
Algebraic Identity Required in this question → (a + b)² = a² + 2ab + b²
Let's expand step-by-step.
(√5 + 5√6)²
Step 1: Apply the identity.
⇒ (√5 + 5√6)²
⇒ (√5)² + 2(√5)(5√6) + (5√6)²
Step 2: Simplify.
⇒ 5 + 10√30 + 25 × 6
⇒ 5 + 10√30 + 150
⇒ (5 + 150) + 10√30
⇒ 155 + 10√30
∴ When we expand (√5 + 5√6)² we get 155 + 10√30
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Answer:
Question
Expand -: (√5 + 5√6)²
______________________________
Answer
To expand the given expression, we'll use algebraic identities.
Algebraic Identity Required in this question → (a + b)² = a² + 2ab + b²
Let's expand step-by-step.
(√5 + 5√6)²
Step 1: Apply the identity.
⇒ (√5 + 5√6)²
⇒ (√5)² + 2(√5)(5√6) + (5√6)²
Step 2: Simplify.
⇒ 5 + 10√30 + 25 × 6
⇒ 5 + 10√30 + 150
⇒ (5 + 150) + 10√30
⇒ 155 + 10√30
∴ When we expand (√5 + 5√6)² we get 155 + 10√30
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