Annabelle and Navene are multiplying (4²7⁵)(4³7²).
Annabelle’s Work: (4²7⁵)(4³7²) = 4² + ³7⁵ + ² = 4⁵7⁷
Navene’s Work: (4²7⁵)(4³7²) = 4²⋅³7⁵⋅² = 4⁶7¹⁰
Is either of them correct? Explain your reasoning.
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Question
Annabelle’s work is correct
(4^2×7^5)(4^3×7^2) = (4^5×7^7)=
843308032
(4^5)+(4^2×7^2)+(7^5×4^3)+(7^7)
= 843308032