Question

find the zeroes of f(SC) = 4 U3Jc? + 55-25
and verify the relationship between the zeroes
and its coefficients.​

Answer 1

Step-by-step explanation:

2x3+x2−5x+2;21,1,−2

p(x)=2x3+x2−5x+2          .... (1)

Zeroes for this polynomial are 21,1,−2

Substitute the x=21 in equation (1)

p(21)=2(21)3+(21)2−5(21)+2

=41+41+25+2

=0

Substitute the x=1 in equation (1)

p(1)=2×13+12−5×1+2

=2+1−5+2=0

Substitute the x=−2 in equation (1)

p(−2)=2(−2)