Question

find the square of 2a+1
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Answer 1

Answer:

4a^2 +1

Step-by-step explanation:

just sq. all the numbers (multiply by themselves)

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Answer 2

Answer:

${(2a + 1)}^{2} \\ \\ {(2a)}^{2} + {1}^{2} + 2 \times 2a \times 1 \\ \\ 4 {a }^{2} + 1 + 4a$