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

Answer»

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



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