Question

4. If a and B are zeroes of polynomial 5x?-8x-4, write the
value of a+B+aß.​

Answer 1

Step-by-step explanation:

Our original quadratic expression is; 3x2−5x+8

Now, if p and q are the roots, then:

3(x−p)(x−q)=0

Multiplying out the terms, we have:

B: 3x2−3(p+q)x+3pq=0

But, A and B are the same equation, so:

−3(p+q)=−5→p+q=53

3pq=8→pq=83

Now, (p+q)2=p2+2pq+q2

→p2+q2=(p+q)2−2pq

We know the values of p + q (from 1.) and pq (from 2.), thus:

p2+q2=(53)2−283

=259−163

=259−489

=−239

Answer 2

Answer:

pta nhi bhai

sorry

pls give thanks