Question

if a,b are zeroes of f(x) = 2x²+6x-6 then find value of a²+b²​

Answer 1

Answer:

15

Step-by-step explanation:

a

$a + b = - 3$

$a \times b = - 3$

$(a + b) { }^{2} = ( - 3) {}^{2}$

$a {}^{2} + b {}^{2} \times 2ab = 9$

$a ^{2} + b {}^{2} \times - 6 = 9$

$a { }^{2} + b {}^{2} = 15$