Question

Question 5: Factorise : 5 – 20x2

Answer 1

Answer:

1/2

Step-by-step explanation:

5-20x2 =0. = -20x2=.-5.

= x2= -5/-20

=. x2=1/4

= X=√1/4

= X=1/2

Answer 2

Step-by-step explanation:

$(5 - 20x²)$

$5(1 - 4x²)$

$5[(1)^² - (2x)^²]$

$5(1 + 2x)(1 - 2x)$