Question

9)
Find
(3x² - 20) (3x² + 5)
DO it with identity

plz answer my question...​

Answer 1

(3x²-20)(3 x²+5) first we have to open the bracket

3 x²-20×3x²+5

3x² cancelled then - 20 + 5 = -15 .

Answer 2

Answer:

( 3x to the power 2 - 20) (3x to the power 2 + 5) first we have to open the bracket 3x to the power 2 - 20 X 3x to the power 2+5, 3x to the power 2 is cancelled then -20 + 5= -15 please mark it as brainliest and have a great day