Question

21. Find the smallest number by which 4374 must be divided so that the quotient is perfect cube.

OR

Find the smallest number by which 4032 must be multiplied to make it a perfect square.

22. Evaluate 2 × (81)¾.

23. Draw a line segment PQ = 7 cm. Draw lines perpendicular to PQ through A and B (AL and

BM).Are AL and BM parallel?

24. If (x – y) = 5 and xy = 24, find the value of (x + y).

OR

Factorise :

2x² + 5y² + z² – 2√10xy – 2√5yz + 2√2zx.

25. Using factor method, divide

(x² – x – 42) by (x – 7).​

Answer 1

Step-by-step explanation:

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