Question

If α and β are the zeroes of the polynomial
5x2 + 7x + 8. Find the value of
(i)α2 + β2.​

Answer 1

Answer:

alpha + bita=-b/a

alpha× bita=c/a

Step-by-step explanation:

this implies that alpha+ bita=-7/5

alpha× bita =8/5

alpha sqare + bita sqare=

alpha+ bita ka whole sqare -2alpha×bita

so, -7/5 ka whole sqare -2×8/5

=49/25-16/5

49-65/25

-16/25 is the right answer.

hope it will help you