Question

qstn no. 9.. plzzzzz.. class 10 icse qstn​

Answer 1

Step-by-step explanation:

As x,2x + 2 and 3x + 3 are in G.P

(2x + 2)² = x * (3x + 3)

⇒ 4x² + 4 + 8x = 3x² + 3x

⇒ 4x² + 4 + 8x - 3x² - 3x = 0

⇒ x² + 5x + 4 = 0

⇒ x² + 4x + x + 4 = 0

⇒ x(x + 4) + (x + 4) = 0

⇒ x = -1, -4

Using x = - 1,

We get three terms as -1,0,0 as G.P

Using x = -4 :

We get three terms as -4,-6,-9 as G.P

Hope it helps!