Question

Expand the following (3a-14)². ​

Answer 1

9a^2 - 84a + 196

Step-by-step explanation:

(3a-14)²

${(3a)}^{2} - 2 \times 3a \times 14 + (14) {}^{2}$

${9a}^{2} - 84a + 196$

Answer 2

Answer:

(3a-14)²=3a²+14²-2×3a×14

9a²+196-84a

Step-by-step explanation:

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