p x is equals to x square - 9
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Hlw mate !!
It is given that ,
p( x ) = 2x³ + 6x² - 4x + 9
compare p ( x ) with ax³ + bx² + cx + d , we get
a = 2 , b = 6 , c = -4 , d = 9
Let p , q , r are three zeroes of p ( x ) .
pq = 3 ---( 1 )
product of zeroes = - d/a
pqr = - 9/2
3r = - 9/2
[ from ( 1 ) ]
r = ( - 9/2 ) / 3
r = ( - 9/2 ) × 1/3
r = - 3/2
Therefore ,
third zero of p ( x ) = r = -3/2
Hope it helpful
It is given that ,
p( x ) = 2x³ + 6x² - 4x + 9
compare p ( x ) with ax³ + bx² + cx + d , we get
a = 2 , b = 6 , c = -4 , d = 9
Let p , q , r are three zeroes of p ( x ) .
pq = 3 ---( 1 )
product of zeroes = - d/a
pqr = - 9/2
3r = - 9/2
[ from ( 1 ) ]
r = ( - 9/2 ) / 3
r = ( - 9/2 ) × 1/3
r = - 3/2
Therefore ,
third zero of p ( x ) = r = -3/2
Hope it helpful
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