Question

Pls explain second one and give exponential form

Answer 1

Answer:

$(c) \: \: \frac{3 \times 49 \times {11}^{8} }{21 \times {11}^{3} } = \frac{3 \times 7 \times 7 \times {11}^{8 - 3} }{7 \times 3} = 7 \times {11}^{5}$