Question

Factorise: 4x^2+9x-9 ​

Answer 1

Step-by-step explanation:

For a polynomial of the form ax2+bx+c a x 2 + b x + c , rewrite the middle term as a sum of two terms whose product is a⋅c=4⋅−9=−36 a ⋅ c = 4 ⋅ - 9 = - 36 and whose sum is b=9 . Factor 9 9 out of 9x 9 x

Answer 2

Answer:

x = 3/4 , -3

Step-by-step explanation:

⇒ 4x² + 9x - 9

⇒ 4x² + 12x - 3x - 9

⇒ 4x(x+3) - 3(x+3)

⇒ (4x-3)(x+3)

⇒ x = 3/4 , -3

Hope this helps.....