Answer:
( 5x + 1 ) ( x - 4 )
Step-by-step explanation:
5x² - 19x - 4
= 5x² + x - 20x - 4
= x ( 5x + 1 ) - 4 ( 5x + 1 )
= ( 5x + 1 ) ( x - 4 )
Hence, factorized.
B 24
+=
7^2+b^2=25^2
49+b^2=625
b^2=576
=
b=24
24.74
I did lots of maths