Grade-9(8/7/24)

Find all the factors of the polynomials: 7k^2+9k

• (7x + 4)(x − 7)

• (7x + 4)(x +7)

• (7x - 4)(x − 7)

• None

• (2b - 3)(b - 7)

• (2b -3)(b + 7)

• (2b + 3)(b + 7)

• (2b + 3)(b - 7)

 The square root of which number is rational

  

•      7

• 1.96

•  0.03  

• 13

• 5√6

• √6

• 2√3 +3 √2

• None

On simplifying 8³ × 2⁴, we get

• 2¹²

• 2¹³

• 8⁴

• 81⁴

(16)^3/4 is equal to

• 8

• 9

• 81

• 91

•     an irrational number

   

•  a positive rational number

     

•    a negative rational numberan integer