Question

matematică cl 5 calculează
$15 { }^{2} - 5 \times |(5 {}^{7} ) {}^{8} \div 5 {}^{30} + 5 \times 5 {}^{21} - 5 {}^{26} | \div 25 {}^{10}$
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Answer 1

=225-5×5⁵⁶÷5³⁰+5²²=

=225-5×5⁵⁶×5(‐³⁰)+5²²=

=225-5(¹+⁵⁶-³⁰)+5²²=

=225-5²⁷+5²²