Question

Q10. Using suitable identity find the product of (3x +4) (3x - 5)​

Answer 1

Answer:

9x² -x -20

Step-by-step explanation:

Using dentity

(x + a)(x + b)

Now:

(3x + 4)(3x -5)

= (3x)² + ( 4 + (-5))x + 4 (-5)

= 9x² - x - 20