Answer the following — task. Mathematics State Board, Class 8.

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1) Sheela drove the car at the speed of

9 x^{2}

km/hour and covered

(90 x^{5} y^{2} + 15 x^{4} z + 19 x^{2})

\(km\). Find the time taken by Sheela to cover the distance.

\((\)

i x^{i} y^{2}

\(+\)

\frac{i}{i} x^{i} z

\(+\)

\frac{i}{i}

\()\) hours.

[Note: Insert the suitable coefficient and powers of variables as per the given order and write the constant value in the last answer box.]

2) Simplify the following:

\frac{20 (2 x - 16 y)}{5 (x - 8 y)}

\(=\) .

Did you find an error?

5. Answer the following