Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions

Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface area?

If each edge of a cube is doubled, how many times will its surface area increase?

If each edge of a cube is doubled, how many times will its volume increase?

Divide the given polynomial by the given monomial.

(5x² − 6x) ÷ 3x

Divide the given polynomial by the given monomial.

(3y⁸ − 4y⁶ + 5y⁴) ÷ y⁴

Divide the given polynomial by the given monomial.

8(x³y²z² + x²y³z² + x²y²z³) ÷ 4x²y²z²

Divide the given polynomial by the given monomial.

(x³ + 2x² + 3x) ÷ 2x

Divide the given polynomial by the given monomial.

(p³q⁶ − p⁶q³) ÷ p³q³

Find the squares of the following numbers using the identity (a + b)² = a² + 2ab + b²:  

 405

Find the squares of the following number using the identity (a + b)² = a² + 2ab + b²:  

 510 

Find the squares of the following number using the identity (a + b)² = a² + 2ab + b² 

¹⁰⁰¹ 

Find the square of the following numbers using the identity (a + b)² = a² + 2ab + b²: 

 209 

Find the squares of the following numbers using the identity (a + b)² = a² + 2ab + b²: 

605

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²: 

395 

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²:  

 995 

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²: 

495 

Find the squares of the following numbers using the identity (a − b)² = a² − 2ab + b²: 

 498 

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²:  

99 

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²:  

999

Find the square of the following number using the identity (a − b)² = a² − 2ab + b²:  

599