Question

hey guys pls how to factorise 81+18a+a2

Answer 1

a^2 + 18 a + 81
a^2 + 9a + 9a +81
a( a + 9 ) 9( a + 9 )
(a+9)^2

Answer 2

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⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐
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Given Expression : 81+18a+a²

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On arranging this expression, we get :

a² + 18a + 81

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*⃣*⃣*⃣ FACTORISATION *⃣*⃣*⃣


a² + 18a + 81

= a² + (9+9)a + 81

= a² + 9a + 9a + 81

= a (a+9) + 9 (a+9)

= (a+9) (a+9)

= (a+9)²

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*⃣*⃣*⃣ VERIFICATION *⃣*⃣*⃣

(a+9)²

= (a)² + 2 (a) (9) + (9)²

= a² + 18 a + 81

= 81 + 18a + a²


THUS, WE CAN ALSO VERIFY THE ABOVE SOLUTION .



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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐

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