Question

explain in detail these questions
for 25 points

Answer 1

hi friend here is your answer
in the 2nd answer after
8-12+4
=12-12
=0
hope this helps

do mark as brainliest

Answer 2

here some mistake in writing .
I think P(x) = acx²+ ( ab -c²)x -bc

now,

acx² + (ab - c²)x - bc

= acx² + abx - c²x - bc

= ax ( cx + b) - c ( cx + b)

=( ax - b)( cx+ b)

hence, p(x ) = (ax - b) ( cx + b)
for zero ,
P(x ) = 0
then,
x = b/a and -b/c

2) x³ -3x² +2x =0

= > x( x² -3x +2)

=> x( x -2)( x -1)

x(x -1)(x -2) =0

x = 0, 1 and 2

3) p( y) =7 y² -11y/3 -2/3

for finding of roots

7y² -11y/3 -2/3 =0
21y² -11y -2 =0

use formula for finding roots
x ={ 11±√(121 +168)}/14
=( 11 ±17)/14

= 2, -6/14

= 2, -3/7