Say yes or no — task. Mathematics State Board, Class 8.

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1) Is

\frac{50 y^{2} + 10}{{5y}^{2} + 1} = 10

2) Is

\frac{9^{7}}{9^{5}} = 81

3) Is

\frac{7 x^{2} + 11}{11} = 7 x^{2}

4) Is

\frac{28 x + 56 y}{7} = 4 y + 8 x

Did you find an error?

4. Say yes or no