Question

(viii) (3x ²- 7) (3x² - 8)​

Answer 1

Answer:

(3x²−7)(3x²−8)

=(3x²+−7)(3x²+−8)

=(3x²)(3x²)+(3x²)(−8)+(−7)(3x²)+(−7)(−8)

=9x^4−24x²−21x²+56

=9x^4−45x²+56