Question

if x=-a is a zero of ma-nx-3x^2 then prove that a=m+n/3

Answer 1

Answer:

proved=>m+n/3

Step-by-step explanation:

i hope this will help you

Answer 2

Answer:

➡️x=-a is a zero of p(x)

$p(x) = ma-nx-3x^2$

$p( - a) = ma - n( - a) - 3( { - a})^{2}$

$p( - a) = ma + na - 3 {a}^{2}$

$0 = a(m + n - 3 {a})$

$m + n = 3a$

$a = \frac{m + n}{3}$

Hence Proved. ✅