(a+2b)² ?????????????????????
1 answer:
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
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Answer: i think 1/4
Step-by-step explanation: maybe i might be incorrect
17trees/1ton of paper saved.
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B
substitute b = 7 into the expression and evaluate
- 3 × (7)² + 25 = (- 3 × 49 ) + 25 = - 147 + 25 = - 122 → B
Around 5/6 hours. 5x5=25.
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