Question

$(x + y + 4z) ^{2}$
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Answer 1

Answer:

$(x + y + 4z) {}^{2} \\ x {}^{2} + y {}^{2} +( 4z) {}^{2} + 2 \times x \times y \times 4z \\ x {}^{2} + y {}^{2} + 16z {}^{2} + 8xyz$

Step-by-step explanation:

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