Beulah computed 25 × 210 = 250 . Has she done it correctly? Give the – InterviewSolution

1.

Beulah computed 25 × 210 = 250 . Has she done it correctly? Give the reason.

Answer»

Given 2⁵ x 2¹⁰

We know a^m × aⁿ = a^m+n

= 2⁵⁺¹⁰ = 2¹⁵ ≠ 2⁵⁰

∴ 2⁵ × 2¹⁰ ≠ 2⁵⁰

Beulah did wrong.

Here we have to add the powers.

But, he multiplied the powers.

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