Answer:
a² + 4ab + 4b²
Step-by-step 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
Answer:

Step-by-step explanation:
(cylinder)
(rectangular prism)
(whole shape)
Answer:
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f hi me ji ajkdsl;f jewiopag wheuip gjhishgfuidshifokh sal fhlasdk f
Answer: m= 3
Step-by-step explanation:
Because 4xm=12 4x3=12 so the answer will be 3