Question

Find the simplified form of the expression. Given your answer in scientific notation (8 x 10^4)(9 x 10^8)

Answer 1

$(8 \times {10}^{4} )(9 \times {10}^{8} ) \\ = 8 \times 9 \times {10}^{4} \times {10}^{8 } \\ = 72 \times {10}^{4 + 8} \\ = 7.2 \times 10 \times {10}^{12} \\ = 7.2 \times {10}^{13}$

This is the answer with step by step explanation