Question

answer if any one know the answer​

Answer 1

Answer:

3.30×30

=900

4.i do t know

Answer 2

$(50 - 20) \times 30 \\ \\ 30 \times 30 \\ \\ 900 \\ \\ \\ {3}^{x} = 270 \\ \\ {3}^{x} = {3}^{3} \times ( {3}^{2} + 1) \\ \\ {3}^{x} = {3}^{5} + {3}^{3} \\ \\ now \\ \\ {3}^{x - 3} = {3}^{x} \times {3}^{ - 3} \\ \\ = ({3}^{5} + {3}^{3} ) \times {3}^{ - 3} \\ \\ = {3}^{5} \times {3}^{ - 3} + {3}^{3} \times {3}^{ - 3} \\ \\ = {3}^{2} + 1 \\ \\ = 9 + 1 \\ \\ = 10 \\ \\ hence \\ \\ {3}^{x - 3} = 10$

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