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(a+2b)² ????????????????????? ​
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2 votes
(a+2b)² ?????????????????????
​

User Sivuyile TG Magutywa
by
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1 Answer

5 votes

Answer:

a² + 4ab + 4b²

Explanation:

Given

(a + 2b)²

= (a + 2b)(a + 2b)

Each term in the second factor is multiplied by each term in the first factor, that is

a(a + 2b) + 2b(a + 2b) ← distribute both parenthesis

= a² + 2ab + 2ab + 4b² ← collect like terms

= a² + 4ab + 4b²

User Dzhefer
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