Question

-5-10t+20t² factorise it​

Answer 1

Answer:

4t² - 2t - 1 = 0

Step-by-step explanation:

-5-10t+20t² can be written as ==> 20t² - 10t - 5 = 0

∴ (By taking out 5 common)

5*( 4t² - 2t - 1 ) = 0

4t² - 2t - 1 = 0  ( 0/5 = 0)

This is your factorisation