Question

If a and ß are zeroes of polynomial
2y²+ 7y+ 5, white the value of a+ß +aB​

Answer 1

Step-by-step explanation:

hope this helps you better

Answer 2

Answer:

If a and ß are zeroes of polynomial

ax²+ bx + c

then,

$\alpha + \beta = - \frac{b}{a} \\ \\ \alpha \beta = \frac{c}{a}$

Now

If a and ß are zeroes of polynomial

If a and ß are zeroes of polynomial2y²+ 7y+ 5 , then

$\alpha + \beta = - \frac{7}{2} \\ \\ \alpha \beta = \frac{5}{2} \\ so \\ \alpha + \beta + \alpha \beta \\ - \frac{7}{2} + \frac{5}{2} \\ = \frac{ - 7 + 5}{2} \\ = \frac{ - 2}{2} \\ = - 1$