$10 \mathrm{x}^{9} \cdot 5 \mathrm{x}^{10}$
A) $50 x^{19}$
B) $50 x^{90}$
C) $100 x^{19}$
D) $15 x^{19}$

Name: $10 \mathrm{x}^{9} \cdot 5 \mathrm{x}^{10}$ A) $50 x^{19}$ B) $50 x^{90}$ C) $100 x^{19}$ D) $15 x^{19}$
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Question

Quizplus · Accepted Answer

When multiplying powers with the same base, you add the exponents. So, $10x^9 \cdot 5x^{10} = 50x^{9+10} = 50x^{19}$.

10x9⋅5x1010 \mathrm{x}^{9} \cdot 5 \mathrm{x}^{10}10x9⋅5x10 A) 50x1950 x^{19}50x19 B) 50x9050 x^{90}50x90 C) 100x19100 x^{19}100x19

$10 \mathrm{x}^{9} \cdot 5 \mathrm{x}^{10}$ A) $50 x^{19}$ B) $50 x^{90}$ C) $100 x^{19}$