Question

expand ( q + 7 )2 by use the expansion fromula​

Answer 1

Answer:

q²+14q+49

Step-by-step explanation:

$(q + 7) {}^{2} \\ = q {}^{2} + 2 \times q \times 7 + 7 {}^{2} \\ = q {}^{2} + 14q + 49$

Using (a+b)² formula

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